Home / 320,680,617,521.72-442,539,542,226.78-176,174,108,377.04

Finding the Fourth Proportional to 320,680,617,521.72, 442,539,542,226.78 and 176,174,108,377.04

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Solution

The fourth proportional to 320,680,617,521.72, 442,539,542,226.78 and 176,174,108,377.04 is: 243,120,428,904.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,680,617,521.72 : 442,539,542,226.78 = 176,174,108,377.04 : x
  2. Step 2: Convert to fraction form
    320,680,617,521.72/442,539,542,226.78 = 176,174,108,377.04/x
  3. Step 3: Cross multiply
    320,680,617,521.72x = 442,539,542,226.78 × 176,174,108,377.04
  4. Step 4: Simplify right side
    320,680,617,521.72x = 77,964,009,273,386,418,044,928
  5. Step 5: Solve for x
    x = 77,964,009,273,386,418,044,928/320,680,617,521.72
  6. Step 6: Final answer
    x = 243,120,428,904.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.