Home / 218,903,146.30-328,138,143.45-103,685,175.10

Finding the Fourth Proportional to 218,903,146.30, 328,138,143.45 and 103,685,175.10

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Solution

The fourth proportional to 218,903,146.30, 328,138,143.45 and 103,685,175.10 is: 155,425,179.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,903,146.30 : 328,138,143.45 = 103,685,175.10 : x
  2. Step 2: Convert to fraction form
    218,903,146.30/328,138,143.45 = 103,685,175.10/x
  3. Step 3: Cross multiply
    218,903,146.30x = 328,138,143.45 × 103,685,175.10
  4. Step 4: Simplify right side
    218,903,146.30x = 34,023,060,860,602,164
  5. Step 5: Solve for x
    x = 34,023,060,860,602,164/218,903,146.30
  6. Step 6: Final answer
    x = 155,425,179.75

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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.