Home / 1,028,136,872.91-1,542,426,552.92-319,071,434.11

Finding the Fourth Proportional to 1,028,136,872.91, 1,542,426,552.92 and 319,071,434.11

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Solution

The fourth proportional to 1,028,136,872.91, 1,542,426,552.92 and 319,071,434.11 is: 478,675,811.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,136,872.91 : 1,542,426,552.92 = 319,071,434.11 : x
  2. Step 2: Convert to fraction form
    1,028,136,872.91/1,542,426,552.92 = 319,071,434.11/x
  3. Step 3: Cross multiply
    1,028,136,872.91x = 1,542,426,552.92 × 319,071,434.11
  4. Step 4: Simplify right side
    1,028,136,872.91x = 492,144,252,246,469,824
  5. Step 5: Solve for x
    x = 492,144,252,246,469,824/1,028,136,872.91
  6. Step 6: Final answer
    x = 478,675,811.76

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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.