Home / 128,404,185-192,492,902.20-98,246,679.72

Finding the Fourth Proportional to 128,404,185, 192,492,902.20 and 98,246,679.72

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Solution

The fourth proportional to 128,404,185, 192,492,902.20 and 98,246,679.72 is: 147,283,272.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,404,185 : 192,492,902.20 = 98,246,679.72 : x
  2. Step 2: Convert to fraction form
    128,404,185/192,492,902.20 = 98,246,679.72/x
  3. Step 3: Cross multiply
    128,404,185x = 192,492,902.20 × 98,246,679.72
  4. Step 4: Simplify right side
    128,404,185x = 18,911,788,510,816,680
  5. Step 5: Solve for x
    x = 18,911,788,510,816,680/128,404,185
  6. Step 6: Final answer
    x = 147,283,272.04

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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.