Home / 1,013,645,387.52-1,398,830,646.72-550,071,371.52

Finding the Fourth Proportional to 1,013,645,387.52, 1,398,830,646.72 and 550,071,371.52

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Solution

The fourth proportional to 1,013,645,387.52, 1,398,830,646.72 and 550,071,371.52 is: 759,098,499.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,645,387.52 : 1,398,830,646.72 = 550,071,371.52 : x
  2. Step 2: Convert to fraction form
    1,013,645,387.52/1,398,830,646.72 = 550,071,371.52/x
  3. Step 3: Cross multiply
    1,013,645,387.52x = 1,398,830,646.72 × 550,071,371.52
  4. Step 4: Simplify right side
    1,013,645,387.52x = 769,456,692,365,479,040
  5. Step 5: Solve for x
    x = 769,456,692,365,479,040/1,013,645,387.52
  6. Step 6: Final answer
    x = 759,098,499.18

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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.