Home / 1,398,745,519.47-1,930,258,822.91-763,665,990.48

Finding the Fourth Proportional to 1,398,745,519.47, 1,930,258,822.91 and 763,665,990.48

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Solution

The fourth proportional to 1,398,745,519.47, 1,930,258,822.91 and 763,665,990.48 is: 1,053,853,610.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,745,519.47 : 1,930,258,822.91 = 763,665,990.48 : x
  2. Step 2: Convert to fraction form
    1,398,745,519.47/1,930,258,822.91 = 763,665,990.48/x
  3. Step 3: Cross multiply
    1,398,745,519.47x = 1,930,258,822.91 × 763,665,990.48
  4. Step 4: Simplify right side
    1,398,745,519.47x = 1,474,073,015,882,233,088
  5. Step 5: Solve for x
    x = 1,474,073,015,882,233,088/1,398,745,519.47
  6. Step 6: Final answer
    x = 1,053,853,610.51

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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.