Home / 260,657,513,218.92-390,775,276,929.36-81,491,276,013.60

Finding the Fourth Proportional to 260,657,513,218.92, 390,775,276,929.36 and 81,491,276,013.60

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Solution

The fourth proportional to 260,657,513,218.92, 390,775,276,929.36 and 81,491,276,013.60 is: 122,170,949,758.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,657,513,218.92 : 390,775,276,929.36 = 81,491,276,013.60 : x
  2. Step 2: Convert to fraction form
    260,657,513,218.92/390,775,276,929.36 = 81,491,276,013.60/x
  3. Step 3: Cross multiply
    260,657,513,218.92x = 390,775,276,929.36 × 81,491,276,013.60
  4. Step 4: Simplify right side
    260,657,513,218.92x = 31,844,775,951,541,452,406,784
  5. Step 5: Solve for x
    x = 31,844,775,951,541,452,406,784/260,657,513,218.92
  6. Step 6: Final answer
    x = 122,170,949,758.11

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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.