Home / 109,156,720.80-163,735,081.20-107,721,830.10

Finding the Fourth Proportional to 109,156,720.80, 163,735,081.20 and 107,721,830.10

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Solution

The fourth proportional to 109,156,720.80, 163,735,081.20 and 107,721,830.10 is: 161,582,745.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,156,720.80 : 163,735,081.20 = 107,721,830.10 : x
  2. Step 2: Convert to fraction form
    109,156,720.80/163,735,081.20 = 107,721,830.10/x
  3. Step 3: Cross multiply
    109,156,720.80x = 163,735,081.20 × 107,721,830.10
  4. Step 4: Simplify right side
    109,156,720.80x = 17,637,842,598,436,102
  5. Step 5: Solve for x
    x = 17,637,842,598,436,102/109,156,720.80
  6. Step 6: Final answer
    x = 161,582,745.15

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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.