Home / 99,844,166.40-149,766,249.60-72,421,810.80

Finding the Fourth Proportional to 99,844,166.40, 149,766,249.60 and 72,421,810.80

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Solution

The fourth proportional to 99,844,166.40, 149,766,249.60 and 72,421,810.80 is: 108,632,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,844,166.40 : 149,766,249.60 = 72,421,810.80 : x
  2. Step 2: Convert to fraction form
    99,844,166.40/149,766,249.60 = 72,421,810.80/x
  3. Step 3: Cross multiply
    99,844,166.40x = 149,766,249.60 × 72,421,810.80
  4. Step 4: Simplify right side
    99,844,166.40x = 10,846,342,992,756,774
  5. Step 5: Solve for x
    x = 10,846,342,992,756,774/99,844,166.40
  6. Step 6: Final answer
    x = 108,632,716.20

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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.