Home / 12,781,337.60-19,172,006.40-9,925,990.40

Finding the Fourth Proportional to 12,781,337.60, 19,172,006.40 and 9,925,990.40

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Solution

The fourth proportional to 12,781,337.60, 19,172,006.40 and 9,925,990.40 is: 14,888,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,337.60 : 19,172,006.40 = 9,925,990.40 : x
  2. Step 2: Convert to fraction form
    12,781,337.60/19,172,006.40 = 9,925,990.40/x
  3. Step 3: Cross multiply
    12,781,337.60x = 19,172,006.40 × 9,925,990.40
  4. Step 4: Simplify right side
    12,781,337.60x = 190,301,151,475,138.56
  5. Step 5: Solve for x
    x = 190,301,151,475,138.56/12,781,337.60
  6. Step 6: Final answer
    x = 14,888,985.60

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Similar ratio
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1.5x scale

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.