Home / 298,411,940-642,173,528

Finding the Third Proportional to 298,411,940 and 642,173,528

Calculator

Solution

The third proportional to 298,411,940 and 642,173,528 is: 1,381,938,135.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,411,940 : 642,173,528 = 642,173,528 : x
  2. Step 2: Convert to fraction form
    298,411,940/642,173,528 = 642,173,528/x
  3. Step 3: Cross multiply
    298,411,940x = 642,173,528 × 642,173,528
  4. Step 4: Simplify right side
    298,411,940x = 412,386,840,063,966,784
  5. Step 5: Solve for x
    x = 412,386,840,063,966,784/298,411,940
  6. Step 6: Final answer
    x = 1,381,938,135.80

Related Problems

Find third proportional to 149,205,970 and 321,086,764
Half scale
Find third proportional to 596,823,880 and 1,284,347,056
Double scale
Find third proportional to 298,411,942 and 642,173,532
Similar ratio
Find third proportional to 447,617,910 and 963,260,292
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.