Home / 502,989,478.80-694,125,512.80-279,966,359.36

Finding the Fourth Proportional to 502,989,478.80, 694,125,512.80 and 279,966,359.36

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Solution

The fourth proportional to 502,989,478.80, 694,125,512.80 and 279,966,359.36 is: 386,353,593.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,989,478.80 : 694,125,512.80 = 279,966,359.36 : x
  2. Step 2: Convert to fraction form
    502,989,478.80/694,125,512.80 = 279,966,359.36/x
  3. Step 3: Cross multiply
    502,989,478.80x = 694,125,512.80 × 279,966,359.36
  4. Step 4: Simplify right side
    502,989,478.80x = 194,331,792,757,509,088
  5. Step 5: Solve for x
    x = 194,331,792,757,509,088/502,989,478.80
  6. Step 6: Final answer
    x = 386,353,593.76

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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.