Home / 81,445,998.80-122,168,998.20-43,182,246.80

Finding the Fourth Proportional to 81,445,998.80, 122,168,998.20 and 43,182,246.80

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Solution

The fourth proportional to 81,445,998.80, 122,168,998.20 and 43,182,246.80 is: 64,773,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,445,998.80 : 122,168,998.20 = 43,182,246.80 : x
  2. Step 2: Convert to fraction form
    81,445,998.80/122,168,998.20 = 43,182,246.80/x
  3. Step 3: Cross multiply
    81,445,998.80x = 122,168,998.20 × 43,182,246.80
  4. Step 4: Simplify right side
    81,445,998.80x = 5,275,531,831,581,156
  5. Step 5: Solve for x
    x = 5,275,531,831,581,156/81,445,998.80
  6. Step 6: Final answer
    x = 64,773,370.20

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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.