Home / 278,468,181,500.82-417,701,750,857.78-87,254,857,402.29

Finding the Fourth Proportional to 278,468,181,500.82, 417,701,750,857.78 and 87,254,857,402.29

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Solution

The fourth proportional to 278,468,181,500.82, 417,701,750,857.78 and 87,254,857,402.29 is: 130,882,122,730.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,468,181,500.82 : 417,701,750,857.78 = 87,254,857,402.29 : x
  2. Step 2: Convert to fraction form
    278,468,181,500.82/417,701,750,857.78 = 87,254,857,402.29/x
  3. Step 3: Cross multiply
    278,468,181,500.82x = 417,701,750,857.78 × 87,254,857,402.29
  4. Step 4: Simplify right side
    278,468,181,500.82x = 36,446,506,707,782,457,098,240
  5. Step 5: Solve for x
    x = 36,446,506,707,782,457,098,240/278,468,181,500.82
  6. Step 6: Final answer
    x = 130,882,122,730.69

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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.