Home / 89,073,097.60-133,609,646.40-80,463,753.40

Finding the Fourth Proportional to 89,073,097.60, 133,609,646.40 and 80,463,753.40

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Solution

The fourth proportional to 89,073,097.60, 133,609,646.40 and 80,463,753.40 is: 120,695,630.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,073,097.60 : 133,609,646.40 = 80,463,753.40 : x
  2. Step 2: Convert to fraction form
    89,073,097.60/133,609,646.40 = 80,463,753.40/x
  3. Step 3: Cross multiply
    89,073,097.60x = 133,609,646.40 × 80,463,753.40
  4. Step 4: Simplify right side
    89,073,097.60x = 10,750,733,639,790,800
  5. Step 5: Solve for x
    x = 10,750,733,639,790,800/89,073,097.60
  6. Step 6: Final answer
    x = 120,695,630.10

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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.