Home / 686,481,863.40-1,029,722,795.10-630,046,765.80

Finding the Fourth Proportional to 686,481,863.40, 1,029,722,795.10 and 630,046,765.80

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Solution

The fourth proportional to 686,481,863.40, 1,029,722,795.10 and 630,046,765.80 is: 945,070,148.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,481,863.40 : 1,029,722,795.10 = 630,046,765.80 : x
  2. Step 2: Convert to fraction form
    686,481,863.40/1,029,722,795.10 = 630,046,765.80/x
  3. Step 3: Cross multiply
    686,481,863.40x = 1,029,722,795.10 × 630,046,765.80
  4. Step 4: Simplify right side
    686,481,863.40x = 648,773,516,723,291,008
  5. Step 5: Solve for x
    x = 648,773,516,723,291,008/686,481,863.40
  6. Step 6: Final answer
    x = 945,070,148.70

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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.