Home / 118,077,857.72-162,948,504.30-65,156,919.20

Finding the Fourth Proportional to 118,077,857.72, 162,948,504.30 and 65,156,919.20

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Solution

The fourth proportional to 118,077,857.72, 162,948,504.30 and 65,156,919.20 is: 89,917,133.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,077,857.72 : 162,948,504.30 = 65,156,919.20 : x
  2. Step 2: Convert to fraction form
    118,077,857.72/162,948,504.30 = 65,156,919.20/x
  3. Step 3: Cross multiply
    118,077,857.72x = 162,948,504.30 × 65,156,919.20
  4. Step 4: Simplify right side
    118,077,857.72x = 10,617,222,528,435,954
  5. Step 5: Solve for x
    x = 10,617,222,528,435,954/118,077,857.72
  6. Step 6: Final answer
    x = 89,917,133.77

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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.