Home / 1,227,398,987.20-1,841,085,883.68-709,499,891.20

Finding the Fourth Proportional to 1,227,398,987.20, 1,841,085,883.68 and 709,499,891.20

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Solution

The fourth proportional to 1,227,398,987.20, 1,841,085,883.68 and 709,499,891.20 is: 1,064,242,555.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,398,987.20 : 1,841,085,883.68 = 709,499,891.20 : x
  2. Step 2: Convert to fraction form
    1,227,398,987.20/1,841,085,883.68 = 709,499,891.20/x
  3. Step 3: Cross multiply
    1,227,398,987.20x = 1,841,085,883.68 × 709,499,891.20
  4. Step 4: Simplify right side
    1,227,398,987.20x = 1,306,250,234,160,815,872
  5. Step 5: Solve for x
    x = 1,306,250,234,160,815,872/1,227,398,987.20
  6. Step 6: Final answer
    x = 1,064,242,555.02

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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.