Home / 18,966,680,219.22-28,438,992,468.81-7,176,709,463.82

Finding the Fourth Proportional to 18,966,680,219.22, 28,438,992,468.81 and 7,176,709,463.82

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Solution

The fourth proportional to 18,966,680,219.22, 28,438,992,468.81 and 7,176,709,463.82 is: 10,760,891,417.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966,680,219.22 : 28,438,992,468.81 = 7,176,709,463.82 : x
  2. Step 2: Convert to fraction form
    18,966,680,219.22/28,438,992,468.81 = 7,176,709,463.82/x
  3. Step 3: Cross multiply
    18,966,680,219.22x = 28,438,992,468.81 × 7,176,709,463.82
  4. Step 4: Simplify right side
    18,966,680,219.22x = 204,098,386,392,414,420,992
  5. Step 5: Solve for x
    x = 204,098,386,392,414,420,992/18,966,680,219.22
  6. Step 6: Final answer
    x = 10,760,891,417.66

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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.