Home / 1,123,632,000.70-1,685,448,001.05-815,478,451.90

Finding the Fourth Proportional to 1,123,632,000.70, 1,685,448,001.05 and 815,478,451.90

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Solution

The fourth proportional to 1,123,632,000.70, 1,685,448,001.05 and 815,478,451.90 is: 1,223,217,677.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,632,000.70 : 1,685,448,001.05 = 815,478,451.90 : x
  2. Step 2: Convert to fraction form
    1,123,632,000.70/1,685,448,001.05 = 815,478,451.90/x
  3. Step 3: Cross multiply
    1,123,632,000.70x = 1,685,448,001.05 × 815,478,451.90
  4. Step 4: Simplify right side
    1,123,632,000.70x = 1,374,446,526,654,203,392
  5. Step 5: Solve for x
    x = 1,374,446,526,654,203,392/1,123,632,000.70
  6. Step 6: Final answer
    x = 1,223,217,677.85

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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.