Home / 13,335,571.92-18,403,145.64-7,224,000.42

Finding the Fourth Proportional to 13,335,571.92, 18,403,145.64 and 7,224,000.42

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Solution

The fourth proportional to 13,335,571.92, 18,403,145.64 and 7,224,000.42 is: 9,969,151.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335,571.92 : 18,403,145.64 = 7,224,000.42 : x
  2. Step 2: Convert to fraction form
    13,335,571.92/18,403,145.64 = 7,224,000.42/x
  3. Step 3: Cross multiply
    13,335,571.92x = 18,403,145.64 × 7,224,000.42
  4. Step 4: Simplify right side
    13,335,571.92x = 132,944,331,832,681.17
  5. Step 5: Solve for x
    x = 132,944,331,832,681.17/13,335,571.92
  6. Step 6: Final answer
    x = 9,969,151.13

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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.