Home / 156,192,811.54-215,541,408.51-85,626,008.30

Finding the Fourth Proportional to 156,192,811.54, 215,541,408.51 and 85,626,008.30

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Solution

The fourth proportional to 156,192,811.54, 215,541,408.51 and 85,626,008.30 is: 118,161,330.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,192,811.54 : 215,541,408.51 = 85,626,008.30 : x
  2. Step 2: Convert to fraction form
    156,192,811.54/215,541,408.51 = 85,626,008.30/x
  3. Step 3: Cross multiply
    156,192,811.54x = 215,541,408.51 × 85,626,008.30
  4. Step 4: Simplify right side
    156,192,811.54x = 18,455,950,434,609,804
  5. Step 5: Solve for x
    x = 18,455,950,434,609,804/156,192,811.54
  6. Step 6: Final answer
    x = 118,161,330.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.