Home / 109,079,479.40-163,619,219.10-68,264,810.60

Finding the Fourth Proportional to 109,079,479.40, 163,619,219.10 and 68,264,810.60

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Solution

The fourth proportional to 109,079,479.40, 163,619,219.10 and 68,264,810.60 is: 102,397,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,079,479.40 : 163,619,219.10 = 68,264,810.60 : x
  2. Step 2: Convert to fraction form
    109,079,479.40/163,619,219.10 = 68,264,810.60/x
  3. Step 3: Cross multiply
    109,079,479.40x = 163,619,219.10 × 68,264,810.60
  4. Step 4: Simplify right side
    109,079,479.40x = 11,169,435,002,381,402
  5. Step 5: Solve for x
    x = 11,169,435,002,381,402/109,079,479.40
  6. Step 6: Final answer
    x = 102,397,215.90

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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.