Home / 117,516,889.89-162,002,385.33-82,124,814.78

Finding the Fourth Proportional to 117,516,889.89, 162,002,385.33 and 82,124,814.78

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Solution

The fourth proportional to 117,516,889.89, 162,002,385.33 and 82,124,814.78 is: 113,212,797.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,516,889.89 : 162,002,385.33 = 82,124,814.78 : x
  2. Step 2: Convert to fraction form
    117,516,889.89/162,002,385.33 = 82,124,814.78/x
  3. Step 3: Cross multiply
    117,516,889.89x = 162,002,385.33 × 82,124,814.78
  4. Step 4: Simplify right side
    117,516,889.89x = 13,304,415,889,144,440
  5. Step 5: Solve for x
    x = 13,304,415,889,144,440/117,516,889.89
  6. Step 6: Final answer
    x = 113,212,797.77

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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.