Home / 747,346,498.20-1,121,019,747.30-398,668,058.10

Finding the Fourth Proportional to 747,346,498.20, 1,121,019,747.30 and 398,668,058.10

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Solution

The fourth proportional to 747,346,498.20, 1,121,019,747.30 and 398,668,058.10 is: 598,002,087.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,346,498.20 : 1,121,019,747.30 = 398,668,058.10 : x
  2. Step 2: Convert to fraction form
    747,346,498.20/1,121,019,747.30 = 398,668,058.10/x
  3. Step 3: Cross multiply
    747,346,498.20x = 1,121,019,747.30 × 398,668,058.10
  4. Step 4: Simplify right side
    747,346,498.20x = 446,914,765,747,843,712
  5. Step 5: Solve for x
    x = 446,914,765,747,843,712/747,346,498.20
  6. Step 6: Final answer
    x = 598,002,087.15

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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.