Home / 10,015,005.40-15,022,508.10-6,985,791.70

Finding the Fourth Proportional to 10,015,005.40, 15,022,508.10 and 6,985,791.70

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Solution

The fourth proportional to 10,015,005.40, 15,022,508.10 and 6,985,791.70 is: 10,478,687.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015,005.40 : 15,022,508.10 = 6,985,791.70 : x
  2. Step 2: Convert to fraction form
    10,015,005.40/15,022,508.10 = 6,985,791.70/x
  3. Step 3: Cross multiply
    10,015,005.40x = 15,022,508.10 × 6,985,791.70
  4. Step 4: Simplify right side
    10,015,005.40x = 104,944,112,398,162.77
  5. Step 5: Solve for x
    x = 104,944,112,398,162.77/10,015,005.40
  6. Step 6: Final answer
    x = 10,478,687.55

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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.