Home / 1,208,520,066.70-1,812,780,100.05-634,016,745.10

Finding the Fourth Proportional to 1,208,520,066.70, 1,812,780,100.05 and 634,016,745.10

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Solution

The fourth proportional to 1,208,520,066.70, 1,812,780,100.05 and 634,016,745.10 is: 951,025,117.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,520,066.70 : 1,812,780,100.05 = 634,016,745.10 : x
  2. Step 2: Convert to fraction form
    1,208,520,066.70/1,812,780,100.05 = 634,016,745.10/x
  3. Step 3: Cross multiply
    1,208,520,066.70x = 1,812,780,100.05 × 634,016,745.10
  4. Step 4: Simplify right side
    1,208,520,066.70x = 1,149,332,938,615,753,344
  5. Step 5: Solve for x
    x = 1,149,332,938,615,753,344/1,208,520,066.70
  6. Step 6: Final answer
    x = 951,025,117.65

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Half scale
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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.