Home / 80,102,115.76-120,113,425.32-25,507,588.45

Finding the Fourth Proportional to 80,102,115.76, 120,113,425.32 and 25,507,588.45

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Solution

The fourth proportional to 80,102,115.76, 120,113,425.32 and 25,507,588.45 is: 38,248,725.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,102,115.76 : 120,113,425.32 = 25,507,588.45 : x
  2. Step 2: Convert to fraction form
    80,102,115.76/120,113,425.32 = 25,507,588.45/x
  3. Step 3: Cross multiply
    80,102,115.76x = 120,113,425.32 × 25,507,588.45
  4. Step 4: Simplify right side
    80,102,115.76x = 3,063,803,820,382,369.50
  5. Step 5: Solve for x
    x = 3,063,803,820,382,369.50/80,102,115.76
  6. Step 6: Final answer
    x = 38,248,725.28

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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.