Home / 820,712,061.54-1,231,143,769.76-268,017,385.46

Finding the Fourth Proportional to 820,712,061.54, 1,231,143,769.76 and 268,017,385.46

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Solution

The fourth proportional to 820,712,061.54, 1,231,143,769.76 and 268,017,385.46 is: 402,050,791.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,712,061.54 : 1,231,143,769.76 = 268,017,385.46 : x
  2. Step 2: Convert to fraction form
    820,712,061.54/1,231,143,769.76 = 268,017,385.46/x
  3. Step 3: Cross multiply
    820,712,061.54x = 1,231,143,769.76 × 268,017,385.46
  4. Step 4: Simplify right side
    820,712,061.54x = 329,967,934,288,947,648
  5. Step 5: Solve for x
    x = 329,967,934,288,947,648/820,712,061.54
  6. Step 6: Final answer
    x = 402,050,791.93

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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.