Home / 212,720,761.83-293,577,220.02-124,688,722.71

Finding the Fourth Proportional to 212,720,761.83, 293,577,220.02 and 124,688,722.71

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Solution

The fourth proportional to 212,720,761.83, 293,577,220.02 and 124,688,722.71 is: 172,083,666.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,720,761.83 : 293,577,220.02 = 124,688,722.71 : x
  2. Step 2: Convert to fraction form
    212,720,761.83/293,577,220.02 = 124,688,722.71/x
  3. Step 3: Cross multiply
    212,720,761.83x = 293,577,220.02 × 124,688,722.71
  4. Step 4: Simplify right side
    212,720,761.83x = 36,605,768,581,046,440
  5. Step 5: Solve for x
    x = 36,605,768,581,046,440/212,720,761.83
  6. Step 6: Final answer
    x = 172,083,666.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.