Home / 766,367,998.40-1,149,551,997.60-357,465,483.20

Finding the Fourth Proportional to 766,367,998.40, 1,149,551,997.60 and 357,465,483.20

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Solution

The fourth proportional to 766,367,998.40, 1,149,551,997.60 and 357,465,483.20 is: 536,198,224.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,367,998.40 : 1,149,551,997.60 = 357,465,483.20 : x
  2. Step 2: Convert to fraction form
    766,367,998.40/1,149,551,997.60 = 357,465,483.20/x
  3. Step 3: Cross multiply
    766,367,998.40x = 1,149,551,997.60 × 357,465,483.20
  4. Step 4: Simplify right side
    766,367,998.40x = 410,925,160,285,609,216
  5. Step 5: Solve for x
    x = 410,925,160,285,609,216/766,367,998.40
  6. Step 6: Final answer
    x = 536,198,224.80

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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.