Home / 128,017,893.83-176,665,256.96-69,280,568.06

Finding the Fourth Proportional to 128,017,893.83, 176,665,256.96 and 69,280,568.06

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Solution

The fourth proportional to 128,017,893.83, 176,665,256.96 and 69,280,568.06 is: 95,607,488.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,017,893.83 : 176,665,256.96 = 69,280,568.06 : x
  2. Step 2: Convert to fraction form
    128,017,893.83/176,665,256.96 = 69,280,568.06/x
  3. Step 3: Cross multiply
    128,017,893.83x = 176,665,256.96 × 69,280,568.06
  4. Step 4: Simplify right side
    128,017,893.83x = 12,239,469,357,424,942
  5. Step 5: Solve for x
    x = 12,239,469,357,424,942/128,017,893.83
  6. Step 6: Final answer
    x = 95,607,488.86

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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.