Home / 625,721,972.73-863,103,549.20-371,223,148.40

Finding the Fourth Proportional to 625,721,972.73, 863,103,549.20 and 371,223,148.40

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Solution

The fourth proportional to 625,721,972.73, 863,103,549.20 and 371,223,148.40 is: 512,054,923.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,721,972.73 : 863,103,549.20 = 371,223,148.40 : x
  2. Step 2: Convert to fraction form
    625,721,972.73/863,103,549.20 = 371,223,148.40/x
  3. Step 3: Cross multiply
    625,721,972.73x = 863,103,549.20 × 371,223,148.40
  4. Step 4: Simplify right side
    625,721,972.73x = 320,404,016,927,382,208
  5. Step 5: Solve for x
    x = 320,404,016,927,382,208/625,721,972.73
  6. Step 6: Final answer
    x = 512,054,923.58

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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.