Home / 156,404,750.64-215,848,644.84-86,790,131.52

Finding the Fourth Proportional to 156,404,750.64, 215,848,644.84 and 86,790,131.52

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Solution

The fourth proportional to 156,404,750.64, 215,848,644.84 and 86,790,131.52 is: 119,775,979.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,404,750.64 : 215,848,644.84 = 86,790,131.52 : x
  2. Step 2: Convert to fraction form
    156,404,750.64/215,848,644.84 = 86,790,131.52/x
  3. Step 3: Cross multiply
    156,404,750.64x = 215,848,644.84 × 86,790,131.52
  4. Step 4: Simplify right side
    156,404,750.64x = 18,733,532,274,077,368
  5. Step 5: Solve for x
    x = 18,733,532,274,077,368/156,404,750.64
  6. Step 6: Final answer
    x = 119,775,979.93

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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.