Home / 687,995,887.20-965,915,220-687,995,887.20

Finding the Fourth Proportional to 687,995,887.20, 965,915,220 and 687,995,887.20

Calculator

Solution

The fourth proportional to 687,995,887.20, 965,915,220 and 687,995,887.20 is: 965,915,220

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,995,887.20 : 965,915,220 = 687,995,887.20 : x
  2. Step 2: Convert to fraction form
    687,995,887.20/965,915,220 = 687,995,887.20/x
  3. Step 3: Cross multiply
    687,995,887.20x = 965,915,220 × 687,995,887.20
  4. Step 4: Simplify right side
    687,995,887.20x = 664,545,698,743,883,264
  5. Step 5: Solve for x
    x = 664,545,698,743,883,264/687,995,887.20
  6. Step 6: Final answer
    x = 965,915,220

Related Problems

Find fourth proportional to 343,997,943.60, 482,957,610 and 343,997,943.60
Half scale
Find fourth proportional to 1,375,991,774.40, 1,931,830,440 and 1,375,991,774.40
Double scale
Find fourth proportional to 687,995,888.20, 965,915,221.40 and 687,995,888.20
Similar ratio
Find fourth proportional to 1,031,993,830.80, 1,448,872,830 and 1,031,993,830.80
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.