Home / 156,359,142.88-215,794,753.62-90,279,530.19

Finding the Fourth Proportional to 156,359,142.88, 215,794,753.62 and 90,279,530.19

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Solution

The fourth proportional to 156,359,142.88, 215,794,753.62 and 90,279,530.19 is: 124,596,800.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,359,142.88 : 215,794,753.62 = 90,279,530.19 : x
  2. Step 2: Convert to fraction form
    156,359,142.88/215,794,753.62 = 90,279,530.19/x
  3. Step 3: Cross multiply
    156,359,142.88x = 215,794,753.62 × 90,279,530.19
  4. Step 4: Simplify right side
    156,359,142.88x = 19,481,848,974,280,400
  5. Step 5: Solve for x
    x = 19,481,848,974,280,400/156,359,142.88
  6. Step 6: Final answer
    x = 124,596,800.77

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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.