Home / 651,840,766.40-977,761,149.60-307,466,998.40

Finding the Fourth Proportional to 651,840,766.40, 977,761,149.60 and 307,466,998.40

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Solution

The fourth proportional to 651,840,766.40, 977,761,149.60 and 307,466,998.40 is: 461,200,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,840,766.40 : 977,761,149.60 = 307,466,998.40 : x
  2. Step 2: Convert to fraction form
    651,840,766.40/977,761,149.60 = 307,466,998.40/x
  3. Step 3: Cross multiply
    651,840,766.40x = 977,761,149.60 × 307,466,998.40
  4. Step 4: Simplify right side
    651,840,766.40x = 300,629,285,819,645,376
  5. Step 5: Solve for x
    x = 300,629,285,819,645,376/651,840,766.40
  6. Step 6: Final answer
    x = 461,200,497.60

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Half scale
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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.