Home / 115,441,990.80-173,162,986.20-71,604,013.20

Finding the Fourth Proportional to 115,441,990.80, 173,162,986.20 and 71,604,013.20

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Solution

The fourth proportional to 115,441,990.80, 173,162,986.20 and 71,604,013.20 is: 107,406,019.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,441,990.80 : 173,162,986.20 = 71,604,013.20 : x
  2. Step 2: Convert to fraction form
    115,441,990.80/173,162,986.20 = 71,604,013.20/x
  3. Step 3: Cross multiply
    115,441,990.80x = 173,162,986.20 × 71,604,013.20
  4. Step 4: Simplify right side
    115,441,990.80x = 12,399,164,749,616,218
  5. Step 5: Solve for x
    x = 12,399,164,749,616,218/115,441,990.80
  6. Step 6: Final answer
    x = 107,406,019.80

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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.