Home / 268,642,608.20-403,063,445.10-258,689,328.20

Finding the Fourth Proportional to 268,642,608.20, 403,063,445.10 and 258,689,328.20

Calculator

Solution

The fourth proportional to 268,642,608.20, 403,063,445.10 and 258,689,328.20 is: 388,129,837.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,642,608.20 : 403,063,445.10 = 258,689,328.20 : x
  2. Step 2: Convert to fraction form
    268,642,608.20/403,063,445.10 = 258,689,328.20/x
  3. Step 3: Cross multiply
    268,642,608.20x = 403,063,445.10 × 258,689,328.20
  4. Step 4: Simplify right side
    268,642,608.20x = 104,268,211,834,896,576
  5. Step 5: Solve for x
    x = 104,268,211,834,896,576/268,642,608.20
  6. Step 6: Final answer
    x = 388,129,837.38

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.