Home / 99,324,986.40-148,992,145.20-31,169,901.60

Finding the Fourth Proportional to 99,324,986.40, 148,992,145.20 and 31,169,901.60

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Solution

The fourth proportional to 99,324,986.40, 148,992,145.20 and 31,169,901.60 is: 46,756,316.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,324,986.40 : 148,992,145.20 = 31,169,901.60 : x
  2. Step 2: Convert to fraction form
    99,324,986.40/148,992,145.20 = 31,169,901.60/x
  3. Step 3: Cross multiply
    99,324,986.40x = 148,992,145.20 × 31,169,901.60
  4. Step 4: Simplify right side
    99,324,986.40x = 4,644,070,505,056,912
  5. Step 5: Solve for x
    x = 4,644,070,505,056,912/99,324,986.40
  6. Step 6: Final answer
    x = 46,756,316.55

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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.