Home / 521,538,933,715.60-782,307,424,121.72-163,418,323,097.04

Finding the Fourth Proportional to 521,538,933,715.60, 782,307,424,121.72 and 163,418,323,097.04

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Solution

The fourth proportional to 521,538,933,715.60, 782,307,424,121.72 and 163,418,323,097.04 is: 245,127,178,685.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,538,933,715.60 : 782,307,424,121.72 = 163,418,323,097.04 : x
  2. Step 2: Convert to fraction form
    521,538,933,715.60/782,307,424,121.72 = 163,418,323,097.04/x
  3. Step 3: Cross multiply
    521,538,933,715.60x = 782,307,424,121.72 × 163,418,323,097.04
  4. Step 4: Simplify right side
    521,538,933,715.60x = 127,843,367,396,336,340,041,728
  5. Step 5: Solve for x
    x = 127,843,367,396,336,340,041,728/521,538,933,715.60
  6. Step 6: Final answer
    x = 245,127,178,685.48

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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.