Home / 20,779,565.43-28,675,839.15-11,612,208.18

Finding the Fourth Proportional to 20,779,565.43, 28,675,839.15 and 11,612,208.18

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Solution

The fourth proportional to 20,779,565.43, 28,675,839.15 and 11,612,208.18 is: 16,024,869.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,779,565.43 : 28,675,839.15 = 11,612,208.18 : x
  2. Step 2: Convert to fraction form
    20,779,565.43/28,675,839.15 = 11,612,208.18/x
  3. Step 3: Cross multiply
    20,779,565.43x = 28,675,839.15 × 11,612,208.18
  4. Step 4: Simplify right side
    20,779,565.43x = 332,989,813,945,994.25
  5. Step 5: Solve for x
    x = 332,989,813,945,994.25/20,779,565.43
  6. Step 6: Final answer
    x = 16,024,869.00

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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.