Home / 148,691,235.15-205,149,156.56-89,130,799.50

Finding the Fourth Proportional to 148,691,235.15, 205,149,156.56 and 89,130,799.50

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Solution

The fourth proportional to 148,691,235.15, 205,149,156.56 and 89,130,799.50 is: 122,973,679.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,691,235.15 : 205,149,156.56 = 89,130,799.50 : x
  2. Step 2: Convert to fraction form
    148,691,235.15/205,149,156.56 = 89,130,799.50/x
  3. Step 3: Cross multiply
    148,691,235.15x = 205,149,156.56 × 89,130,799.50
  4. Step 4: Simplify right side
    148,691,235.15x = 18,285,108,340,882,264
  5. Step 5: Solve for x
    x = 18,285,108,340,882,264/148,691,235.15
  6. Step 6: Final answer
    x = 122,973,679.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.