Home / 28,005,956.32-38,647,264.55-15,447,508.71

Finding the Fourth Proportional to 28,005,956.32, 38,647,264.55 and 15,447,508.71

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Solution

The fourth proportional to 28,005,956.32, 38,647,264.55 and 15,447,508.71 is: 21,317,035.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,005,956.32 : 38,647,264.55 = 15,447,508.71 : x
  2. Step 2: Convert to fraction form
    28,005,956.32/38,647,264.55 = 15,447,508.71/x
  3. Step 3: Cross multiply
    28,005,956.32x = 38,647,264.55 × 15,447,508.71
  4. Step 4: Simplify right side
    28,005,956.32x = 597,003,955,683,749
  5. Step 5: Solve for x
    x = 597,003,955,683,749/28,005,956.32
  6. Step 6: Final answer
    x = 21,317,035.16

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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.