Home / 12,781,250.10-19,171,875.15-9,925,902.90

Finding the Fourth Proportional to 12,781,250.10, 19,171,875.15 and 9,925,902.90

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Solution

The fourth proportional to 12,781,250.10, 19,171,875.15 and 9,925,902.90 is: 14,888,854.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,250.10 : 19,171,875.15 = 9,925,902.90 : x
  2. Step 2: Convert to fraction form
    12,781,250.10/19,171,875.15 = 9,925,902.90/x
  3. Step 3: Cross multiply
    12,781,250.10x = 19,171,875.15 × 9,925,902.90
  4. Step 4: Simplify right side
    12,781,250.10x = 190,298,171,149,822.94
  5. Step 5: Solve for x
    x = 190,298,171,149,822.94/12,781,250.10
  6. Step 6: Final answer
    x = 14,888,854.35

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Double scale
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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.