Home / 20,061,918.60-30,092,877.90-12,887,465.10

Finding the Fourth Proportional to 20,061,918.60, 30,092,877.90 and 12,887,465.10

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Solution

The fourth proportional to 20,061,918.60, 30,092,877.90 and 12,887,465.10 is: 19,331,197.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,061,918.60 : 30,092,877.90 = 12,887,465.10 : x
  2. Step 2: Convert to fraction form
    20,061,918.60/30,092,877.90 = 12,887,465.10/x
  3. Step 3: Cross multiply
    20,061,918.60x = 30,092,877.90 × 12,887,465.10
  4. Step 4: Simplify right side
    20,061,918.60x = 387,820,913,694,811.25
  5. Step 5: Solve for x
    x = 387,820,913,694,811.25/20,061,918.60
  6. Step 6: Final answer
    x = 19,331,197.65

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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.