Home / 109,080,356.40-163,620,534.60-68,265,687.60

Finding the Fourth Proportional to 109,080,356.40, 163,620,534.60 and 68,265,687.60

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Solution

The fourth proportional to 109,080,356.40, 163,620,534.60 and 68,265,687.60 is: 102,398,531.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,080,356.40 : 163,620,534.60 = 68,265,687.60 : x
  2. Step 2: Convert to fraction form
    109,080,356.40/163,620,534.60 = 68,265,687.60/x
  3. Step 3: Cross multiply
    109,080,356.40x = 163,620,534.60 × 68,265,687.60
  4. Step 4: Simplify right side
    109,080,356.40x = 11,169,668,299,948,590
  5. Step 5: Solve for x
    x = 11,169,668,299,948,590/109,080,356.40
  6. Step 6: Final answer
    x = 102,398,531.40

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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.