Home / 1,387,227,443.40-2,082,616,882.92-1,191,741,521.76

Finding the Fourth Proportional to 1,387,227,443.40, 2,082,616,882.92 and 1,191,741,521.76

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Solution

The fourth proportional to 1,387,227,443.40, 2,082,616,882.92 and 1,191,741,521.76 is: 1,789,137,769.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,227,443.40 : 2,082,616,882.92 = 1,191,741,521.76 : x
  2. Step 2: Convert to fraction form
    1,387,227,443.40/2,082,616,882.92 = 1,191,741,521.76/x
  3. Step 3: Cross multiply
    1,387,227,443.40x = 2,082,616,882.92 × 1,191,741,521.76
  4. Step 4: Simplify right side
    1,387,227,443.40x = 2,481,941,013,294,148,608
  5. Step 5: Solve for x
    x = 2,481,941,013,294,148,608/1,387,227,443.40
  6. Step 6: Final answer
    x = 1,789,137,769.08

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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.