Home / 151,705,138.68-209,354,058-88,968,445.20

Finding the Fourth Proportional to 151,705,138.68, 209,354,058 and 88,968,445.20

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Solution

The fourth proportional to 151,705,138.68, 209,354,058 and 88,968,445.20 is: 122,777,021.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,705,138.68 : 209,354,058 = 88,968,445.20 : x
  2. Step 2: Convert to fraction form
    151,705,138.68/209,354,058 = 88,968,445.20/x
  3. Step 3: Cross multiply
    151,705,138.68x = 209,354,058 × 88,968,445.20
  4. Step 4: Simplify right side
    151,705,138.68x = 18,625,905,036,570,624
  5. Step 5: Solve for x
    x = 18,625,905,036,570,624/151,705,138.68
  6. Step 6: Final answer
    x = 122,777,021.26

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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.