Home / 109,132,672.60-163,699,008.90-65,979,663.40

Finding the Fourth Proportional to 109,132,672.60, 163,699,008.90 and 65,979,663.40

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Solution

The fourth proportional to 109,132,672.60, 163,699,008.90 and 65,979,663.40 is: 98,969,495.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,132,672.60 : 163,699,008.90 = 65,979,663.40 : x
  2. Step 2: Convert to fraction form
    109,132,672.60/163,699,008.90 = 65,979,663.40/x
  3. Step 3: Cross multiply
    109,132,672.60x = 163,699,008.90 × 65,979,663.40
  4. Step 4: Simplify right side
    109,132,672.60x = 10,800,805,506,135,604
  5. Step 5: Solve for x
    x = 10,800,805,506,135,604/109,132,672.60
  6. Step 6: Final answer
    x = 98,969,495.10

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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.