Home / 85,479,665.90-128,282,484.45-34,398,344.30

Finding the Fourth Proportional to 85,479,665.90, 128,282,484.45 and 34,398,344.30

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Solution

The fourth proportional to 85,479,665.90, 128,282,484.45 and 34,398,344.30 is: 51,622,862.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,479,665.90 : 128,282,484.45 = 34,398,344.30 : x
  2. Step 2: Convert to fraction form
    85,479,665.90/128,282,484.45 = 34,398,344.30/x
  3. Step 3: Cross multiply
    85,479,665.90x = 128,282,484.45 × 34,398,344.30
  4. Step 4: Simplify right side
    85,479,665.90x = 4,412,705,067,770,496
  5. Step 5: Solve for x
    x = 4,412,705,067,770,496/85,479,665.90
  6. Step 6: Final answer
    x = 51,622,862.83

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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.