Home / 74,262,403.40-111,393,605.10-67,879,862.60

Finding the Fourth Proportional to 74,262,403.40, 111,393,605.10 and 67,879,862.60

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Solution

The fourth proportional to 74,262,403.40, 111,393,605.10 and 67,879,862.60 is: 101,819,793.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,262,403.40 : 111,393,605.10 = 67,879,862.60 : x
  2. Step 2: Convert to fraction form
    74,262,403.40/111,393,605.10 = 67,879,862.60/x
  3. Step 3: Cross multiply
    74,262,403.40x = 111,393,605.10 × 67,879,862.60
  4. Step 4: Simplify right side
    74,262,403.40x = 7,561,382,608,706,658
  5. Step 5: Solve for x
    x = 7,561,382,608,706,658/74,262,403.40
  6. Step 6: Final answer
    x = 101,819,793.90

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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.