Home / 5,187,756.48-7,781,918.42-2,155,428.93

Finding the Fourth Proportional to 5,187,756.48, 7,781,918.42 and 2,155,428.93

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Solution

The fourth proportional to 5,187,756.48, 7,781,918.42 and 2,155,428.93 is: 3,233,261.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187,756.48 : 7,781,918.42 = 2,155,428.93 : x
  2. Step 2: Convert to fraction form
    5,187,756.48/7,781,918.42 = 2,155,428.93/x
  3. Step 3: Cross multiply
    5,187,756.48x = 7,781,918.42 × 2,155,428.93
  4. Step 4: Simplify right side
    5,187,756.48x = 16,773,372,093,367.89
  5. Step 5: Solve for x
    x = 16,773,372,093,367.89/5,187,756.48
  6. Step 6: Final answer
    x = 3,233,261.27

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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.