Home / 28,007,591.32-42,012,700.28-13,613,501.08

Finding the Fourth Proportional to 28,007,591.32, 42,012,700.28 and 13,613,501.08

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Solution

The fourth proportional to 28,007,591.32, 42,012,700.28 and 13,613,501.08 is: 20,420,889.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007,591.32 : 42,012,700.28 = 13,613,501.08 : x
  2. Step 2: Convert to fraction form
    28,007,591.32/42,012,700.28 = 13,613,501.08/x
  3. Step 3: Cross multiply
    28,007,591.32x = 42,012,700.28 × 13,613,501.08
  4. Step 4: Simplify right side
    28,007,591.32x = 571,939,940,635,496.38
  5. Step 5: Solve for x
    x = 571,939,940,635,496.38/28,007,591.32
  6. Step 6: Final answer
    x = 20,420,889.97

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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.