Home / 39,459,294.09-54,454,972.82-21,578,565.69

Finding the Fourth Proportional to 39,459,294.09, 54,454,972.82 and 21,578,565.69

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Solution

The fourth proportional to 39,459,294.09, 54,454,972.82 and 21,578,565.69 is: 29,779,047.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,459,294.09 : 54,454,972.82 = 21,578,565.69 : x
  2. Step 2: Convert to fraction form
    39,459,294.09/54,454,972.82 = 21,578,565.69/x
  3. Step 3: Cross multiply
    39,459,294.09x = 54,454,972.82 × 21,578,565.69
  4. Step 4: Simplify right side
    39,459,294.09x = 1,175,060,208,035,641.75
  5. Step 5: Solve for x
    x = 1,175,060,208,035,641.75/39,459,294.09
  6. Step 6: Final answer
    x = 29,779,047.88

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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.