Home / 5,187,757.73-7,781,920.39-2,155,430.18

Finding the Fourth Proportional to 5,187,757.73, 7,781,920.39 and 2,155,430.18

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Solution

The fourth proportional to 5,187,757.73, 7,781,920.39 and 2,155,430.18 is: 3,233,263.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187,757.73 : 7,781,920.39 = 2,155,430.18 : x
  2. Step 2: Convert to fraction form
    5,187,757.73/7,781,920.39 = 2,155,430.18/x
  3. Step 3: Cross multiply
    5,187,757.73x = 7,781,920.39 × 2,155,430.18
  4. Step 4: Simplify right side
    5,187,757.73x = 16,773,386,089,112.46
  5. Step 5: Solve for x
    x = 16,773,386,089,112.46/5,187,757.73
  6. Step 6: Final answer
    x = 3,233,263.19

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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.