Home / 722,339,730.28-996,833,929.62-392,314,869.28

Finding the Fourth Proportional to 722,339,730.28, 996,833,929.62 and 392,314,869.28

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Solution

The fourth proportional to 722,339,730.28, 996,833,929.62 and 392,314,869.28 is: 541,397,290.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,339,730.28 : 996,833,929.62 = 392,314,869.28 : x
  2. Step 2: Convert to fraction form
    722,339,730.28/996,833,929.62 = 392,314,869.28/x
  3. Step 3: Cross multiply
    722,339,730.28x = 996,833,929.62 × 392,314,869.28
  4. Step 4: Simplify right side
    722,339,730.28x = 391,072,772,792,739,008
  5. Step 5: Solve for x
    x = 391,072,772,792,739,008/722,339,730.28
  6. Step 6: Final answer
    x = 541,397,290.50

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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.