Home / 20,857,998.60-31,286,997.90-14,487,899.40

Finding the Fourth Proportional to 20,857,998.60, 31,286,997.90 and 14,487,899.40

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Solution

The fourth proportional to 20,857,998.60, 31,286,997.90 and 14,487,899.40 is: 21,731,849.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,857,998.60 : 31,286,997.90 = 14,487,899.40 : x
  2. Step 2: Convert to fraction form
    20,857,998.60/31,286,997.90 = 14,487,899.40/x
  3. Step 3: Cross multiply
    20,857,998.60x = 31,286,997.90 × 14,487,899.40
  4. Step 4: Simplify right side
    20,857,998.60x = 453,282,878,103,211.25
  5. Step 5: Solve for x
    x = 453,282,878,103,211.25/20,857,998.60
  6. Step 6: Final answer
    x = 21,731,849.10

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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.