Home / 99,969,315,806.80-137,961,633,323.24-54,860,656,885.52

Finding the Fourth Proportional to 99,969,315,806.80, 137,961,633,323.24 and 54,860,656,885.52

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Solution

The fourth proportional to 99,969,315,806.80, 137,961,633,323.24 and 54,860,656,885.52 is: 75,709,889,259.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,969,315,806.80 : 137,961,633,323.24 = 54,860,656,885.52 : x
  2. Step 2: Convert to fraction form
    99,969,315,806.80/137,961,633,323.24 = 54,860,656,885.52/x
  3. Step 3: Cross multiply
    99,969,315,806.80x = 137,961,633,323.24 × 54,860,656,885.52
  4. Step 4: Simplify right side
    99,969,315,806.80x = 7,568,665,829,112,190,861,312
  5. Step 5: Solve for x
    x = 7,568,665,829,112,190,861,312/99,969,315,806.80
  6. Step 6: Final answer
    x = 75,709,889,259.81

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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.