Home / 939,944,701.28-1,297,045,723.56-516,536,099.12

Finding the Fourth Proportional to 939,944,701.28, 1,297,045,723.56 and 516,536,099.12

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Solution

The fourth proportional to 939,944,701.28, 1,297,045,723.56 and 516,536,099.12 is: 712,776,972.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,944,701.28 : 1,297,045,723.56 = 516,536,099.12 : x
  2. Step 2: Convert to fraction form
    939,944,701.28/1,297,045,723.56 = 516,536,099.12/x
  3. Step 3: Cross multiply
    939,944,701.28x = 1,297,045,723.56 × 516,536,099.12
  4. Step 4: Simplify right side
    939,944,701.28x = 669,970,938,427,960,192
  5. Step 5: Solve for x
    x = 669,970,938,427,960,192/939,944,701.28
  6. Step 6: Final answer
    x = 712,776,972.43

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.