Home / 10,752,642.40-16,128,963.68-10,387,688.80

Finding the Fourth Proportional to 10,752,642.40, 16,128,963.68 and 10,387,688.80

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Solution

The fourth proportional to 10,752,642.40, 16,128,963.68 and 10,387,688.80 is: 15,581,533.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,752,642.40 : 16,128,963.68 = 10,387,688.80 : x
  2. Step 2: Convert to fraction form
    10,752,642.40/16,128,963.68 = 10,387,688.80/x
  3. Step 3: Cross multiply
    10,752,642.40x = 16,128,963.68 × 10,387,688.80
  4. Step 4: Simplify right side
    10,752,642.40x = 167,542,655,374,342.78
  5. Step 5: Solve for x
    x = 167,542,655,374,342.78/10,752,642.40
  6. Step 6: Final answer
    x = 15,581,533.28

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1.5x scale

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.