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Finding the Fourth Proportional to 644,458,052.70, 966,687,079.05 and 579,960,798.30

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Solution

The fourth proportional to 644,458,052.70, 966,687,079.05 and 579,960,798.30 is: 869,941,197.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,458,052.70 : 966,687,079.05 = 579,960,798.30 : x
  2. Step 2: Convert to fraction form
    644,458,052.70/966,687,079.05 = 579,960,798.30/x
  3. Step 3: Cross multiply
    644,458,052.70x = 966,687,079.05 × 579,960,798.30
  4. Step 4: Simplify right side
    644,458,052.70x = 560,640,610,072,133,120
  5. Step 5: Solve for x
    x = 560,640,610,072,133,120/644,458,052.70
  6. Step 6: Final answer
    x = 869,941,197.45

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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.