Home / 115,391,472.70-172,940,242.65-47,157,072.70

Finding the Fourth Proportional to 115,391,472.70, 172,940,242.65 and 47,157,072.70

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Solution

The fourth proportional to 115,391,472.70, 172,940,242.65 and 47,157,072.70 is: 70,675,548.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,391,472.70 : 172,940,242.65 = 47,157,072.70 : x
  2. Step 2: Convert to fraction form
    115,391,472.70/172,940,242.65 = 47,157,072.70/x
  3. Step 3: Cross multiply
    115,391,472.70x = 172,940,242.65 × 47,157,072.70
  4. Step 4: Simplify right side
    115,391,472.70x = 8,155,355,595,401,691
  5. Step 5: Solve for x
    x = 8,155,355,595,401,691/115,391,472.70
  6. Step 6: Final answer
    x = 70,675,548.24

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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.