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Finding the Fourth Proportional to 15,801,956.34, 21,808,472.12 and 8,926,881.27

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Solution

The fourth proportional to 15,801,956.34, 21,808,472.12 and 8,926,881.27 is: 12,320,097.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,801,956.34 : 21,808,472.12 = 8,926,881.27 : x
  2. Step 2: Convert to fraction form
    15,801,956.34/21,808,472.12 = 8,926,881.27/x
  3. Step 3: Cross multiply
    15,801,956.34x = 21,808,472.12 × 8,926,881.27
  4. Step 4: Simplify right side
    15,801,956.34x = 194,681,641,295,345.19
  5. Step 5: Solve for x
    x = 194,681,641,295,345.19/15,801,956.34
  6. Step 6: Final answer
    x = 12,320,097.40

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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.