Home / 115,840,939.20-173,710,087.20-39,143,140.80

Finding the Fourth Proportional to 115,840,939.20, 173,710,087.20 and 39,143,140.80

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Solution

The fourth proportional to 115,840,939.20, 173,710,087.20 and 39,143,140.80 is: 58,697,369.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,840,939.20 : 173,710,087.20 = 39,143,140.80 : x
  2. Step 2: Convert to fraction form
    115,840,939.20/173,710,087.20 = 39,143,140.80/x
  3. Step 3: Cross multiply
    115,840,939.20x = 173,710,087.20 × 39,143,140.80
  4. Step 4: Simplify right side
    115,840,939.20x = 6,799,558,401,649,877
  5. Step 5: Solve for x
    x = 6,799,558,401,649,877/115,840,939.20
  6. Step 6: Final answer
    x = 58,697,369.42

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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.