Home / 61,173,912.60-91,760,868.90-42,998,630.40

Finding the Fourth Proportional to 61,173,912.60, 91,760,868.90 and 42,998,630.40

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Solution

The fourth proportional to 61,173,912.60, 91,760,868.90 and 42,998,630.40 is: 64,497,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,173,912.60 : 91,760,868.90 = 42,998,630.40 : x
  2. Step 2: Convert to fraction form
    61,173,912.60/91,760,868.90 = 42,998,630.40/x
  3. Step 3: Cross multiply
    61,173,912.60x = 91,760,868.90 × 42,998,630.40
  4. Step 4: Simplify right side
    61,173,912.60x = 3,945,591,687,013,954.50
  5. Step 5: Solve for x
    x = 3,945,591,687,013,954.50/61,173,912.60
  6. Step 6: Final answer
    x = 64,497,945.60

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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.