Home / 647,041,107.60-970,561,661.40-493,986,099.60

Finding the Fourth Proportional to 647,041,107.60, 970,561,661.40 and 493,986,099.60

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Solution

The fourth proportional to 647,041,107.60, 970,561,661.40 and 493,986,099.60 is: 740,979,149.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,041,107.60 : 970,561,661.40 = 493,986,099.60 : x
  2. Step 2: Convert to fraction form
    647,041,107.60/970,561,661.40 = 493,986,099.60/x
  3. Step 3: Cross multiply
    647,041,107.60x = 970,561,661.40 × 493,986,099.60
  4. Step 4: Simplify right side
    647,041,107.60x = 479,443,969,536,281,856
  5. Step 5: Solve for x
    x = 479,443,969,536,281,856/647,041,107.60
  6. Step 6: Final answer
    x = 740,979,149.40

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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.