Home / 85,397,001-128,108,772.54-28,676,576.04

Finding the Fourth Proportional to 85,397,001, 128,108,772.54 and 28,676,576.04

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Solution

The fourth proportional to 85,397,001, 128,108,772.54 and 28,676,576.04 is: 43,019,320.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,397,001 : 128,108,772.54 = 28,676,576.04 : x
  2. Step 2: Convert to fraction form
    85,397,001/128,108,772.54 = 28,676,576.04/x
  3. Step 3: Cross multiply
    85,397,001x = 128,108,772.54 × 28,676,576.04
  4. Step 4: Simplify right side
    85,397,001x = 3,673,720,957,134,374
  5. Step 5: Solve for x
    x = 3,673,720,957,134,374/85,397,001
  6. Step 6: Final answer
    x = 43,019,320.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.