Home / 5,187,759.23-7,781,922.65-2,155,431.69

Finding the Fourth Proportional to 5,187,759.23, 7,781,922.65 and 2,155,431.69

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Solution

The fourth proportional to 5,187,759.23, 7,781,922.65 and 2,155,431.69 is: 3,233,265.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187,759.23 : 7,781,922.65 = 2,155,431.69 : x
  2. Step 2: Convert to fraction form
    5,187,759.23/7,781,922.65 = 2,155,431.69/x
  3. Step 3: Cross multiply
    5,187,759.23x = 7,781,922.65 × 2,155,431.69
  4. Step 4: Simplify right side
    5,187,759.23x = 16,773,402,678,161.62
  5. Step 5: Solve for x
    x = 16,773,402,678,161.62/5,187,759.23
  6. Step 6: Final answer
    x = 3,233,265.45

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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.