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Finding the Fourth Proportional to 979,428,000.70, 1,469,142,001.05 and 979,428,000.70

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Solution

The fourth proportional to 979,428,000.70, 1,469,142,001.05 and 979,428,000.70 is: 1,469,142,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,428,000.70 : 1,469,142,001.05 = 979,428,000.70 : x
  2. Step 2: Convert to fraction form
    979,428,000.70/1,469,142,001.05 = 979,428,000.70/x
  3. Step 3: Cross multiply
    979,428,000.70x = 1,469,142,001.05 × 979,428,000.70
  4. Step 4: Simplify right side
    979,428,000.70x = 1,438,918,812,832,798,720
  5. Step 5: Solve for x
    x = 1,438,918,812,832,798,720/979,428,000.70
  6. Step 6: Final answer
    x = 1,469,142,001.05

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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.