Home / 122,348,013.70-183,522,020.55-85,997,449.30

Finding the Fourth Proportional to 122,348,013.70, 183,522,020.55 and 85,997,449.30

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Solution

The fourth proportional to 122,348,013.70, 183,522,020.55 and 85,997,449.30 is: 128,996,173.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,348,013.70 : 183,522,020.55 = 85,997,449.30 : x
  2. Step 2: Convert to fraction form
    122,348,013.70/183,522,020.55 = 85,997,449.30/x
  3. Step 3: Cross multiply
    122,348,013.70x = 183,522,020.55 × 85,997,449.30
  4. Step 4: Simplify right side
    122,348,013.70x = 15,782,425,657,682,184
  5. Step 5: Solve for x
    x = 15,782,425,657,682,184/122,348,013.70
  6. Step 6: Final answer
    x = 128,996,173.95

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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.