Home / 99,468,009.10-149,202,013.65-90,858,664.90

Finding the Fourth Proportional to 99,468,009.10, 149,202,013.65 and 90,858,664.90

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Solution

The fourth proportional to 99,468,009.10, 149,202,013.65 and 90,858,664.90 is: 136,287,997.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,468,009.10 : 149,202,013.65 = 90,858,664.90 : x
  2. Step 2: Convert to fraction form
    99,468,009.10/149,202,013.65 = 90,858,664.90/x
  3. Step 3: Cross multiply
    99,468,009.10x = 149,202,013.65 × 90,858,664.90
  4. Step 4: Simplify right side
    99,468,009.10x = 13,556,295,760,630,578
  5. Step 5: Solve for x
    x = 13,556,295,760,630,578/99,468,009.10
  6. Step 6: Final answer
    x = 136,287,997.35

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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.