Home / 5,181,875.82-7,771,129.65-1,722,686.94

Finding the Fourth Proportional to 5,181,875.82, 7,771,129.65 and 1,722,686.94

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Solution

The fourth proportional to 5,181,875.82, 7,771,129.65 and 1,722,686.94 is: 2,583,470.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181,875.82 : 7,771,129.65 = 1,722,686.94 : x
  2. Step 2: Convert to fraction form
    5,181,875.82/7,771,129.65 = 1,722,686.94/x
  3. Step 3: Cross multiply
    5,181,875.82x = 7,771,129.65 × 1,722,686.94
  4. Step 4: Simplify right side
    5,181,875.82x = 13,387,223,557,101.77
  5. Step 5: Solve for x
    x = 13,387,223,557,101.77/5,181,875.82
  6. Step 6: Final answer
    x = 2,583,470.55

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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.