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Finding the Fourth Proportional to 18,341,709.90, 27,447,246.45 and 15,971,585.10

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Solution

The fourth proportional to 18,341,709.90, 27,447,246.45 and 15,971,585.10 is: 23,900,499.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341,709.90 : 27,447,246.45 = 15,971,585.10 : x
  2. Step 2: Convert to fraction form
    18,341,709.90/27,447,246.45 = 15,971,585.10/x
  3. Step 3: Cross multiply
    18,341,709.90x = 27,447,246.45 × 15,971,585.10
  4. Step 4: Simplify right side
    18,341,709.90x = 438,376,032,436,847.88
  5. Step 5: Solve for x
    x = 438,376,032,436,847.88/18,341,709.90
  6. Step 6: Final answer
    x = 23,900,499.73

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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.