Home / 18,966,680,217.72-28,438,992,466.56-7,176,709,462.32

Finding the Fourth Proportional to 18,966,680,217.72, 28,438,992,466.56 and 7,176,709,462.32

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Solution

The fourth proportional to 18,966,680,217.72, 28,438,992,466.56 and 7,176,709,462.32 is: 10,760,891,415.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966,680,217.72 : 28,438,992,466.56 = 7,176,709,462.32 : x
  2. Step 2: Convert to fraction form
    18,966,680,217.72/28,438,992,466.56 = 7,176,709,462.32/x
  3. Step 3: Cross multiply
    18,966,680,217.72x = 28,438,992,466.56 × 7,176,709,462.32
  4. Step 4: Simplify right side
    18,966,680,217.72x = 204,098,386,333,608,345,600
  5. Step 5: Solve for x
    x = 204,098,386,333,608,345,600/18,966,680,217.72
  6. Step 6: Final answer
    x = 10,760,891,415.41

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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.