Home / 109,142,023.20-163,713,034.80-65,493,002.40

Finding the Fourth Proportional to 109,142,023.20, 163,713,034.80 and 65,493,002.40

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Solution

The fourth proportional to 109,142,023.20, 163,713,034.80 and 65,493,002.40 is: 98,239,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,142,023.20 : 163,713,034.80 = 65,493,002.40 : x
  2. Step 2: Convert to fraction form
    109,142,023.20/163,713,034.80 = 65,493,002.40/x
  3. Step 3: Cross multiply
    109,142,023.20x = 163,713,034.80 × 65,493,002.40
  4. Step 4: Simplify right side
    109,142,023.20x = 10,722,058,181,067,684
  5. Step 5: Solve for x
    x = 10,722,058,181,067,684/109,142,023.20
  6. Step 6: Final answer
    x = 98,239,503.60

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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.