Home / 13,911,129.32-20,866,747.29-5,818,428.03

Finding the Fourth Proportional to 13,911,129.32, 20,866,747.29 and 5,818,428.03

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Solution

The fourth proportional to 13,911,129.32, 20,866,747.29 and 5,818,428.03 is: 8,727,664.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911,129.32 : 20,866,747.29 = 5,818,428.03 : x
  2. Step 2: Convert to fraction form
    13,911,129.32/20,866,747.29 = 5,818,428.03/x
  3. Step 3: Cross multiply
    13,911,129.32x = 20,866,747.29 × 5,818,428.03
  4. Step 4: Simplify right side
    13,911,129.32x = 121,411,667,327,062.53
  5. Step 5: Solve for x
    x = 121,411,667,327,062.53/13,911,129.32
  6. Step 6: Final answer
    x = 8,727,664.35

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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.