Home / 128,730,015.10-192,945,723.45-52,002,667.90

Finding the Fourth Proportional to 128,730,015.10, 192,945,723.45 and 52,002,667.90

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Solution

The fourth proportional to 128,730,015.10, 192,945,723.45 and 52,002,667.90 is: 77,943,689.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,730,015.10 : 192,945,723.45 = 52,002,667.90 : x
  2. Step 2: Convert to fraction form
    128,730,015.10/192,945,723.45 = 52,002,667.90/x
  3. Step 3: Cross multiply
    128,730,015.10x = 192,945,723.45 × 52,002,667.90
  4. Step 4: Simplify right side
    128,730,015.10x = 10,033,692,379,295,592
  5. Step 5: Solve for x
    x = 10,033,692,379,295,592/128,730,015.10
  6. Step 6: Final answer
    x = 77,943,689.91

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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.