Home / 28,972,664.25-39,982,267.51-15,920,763.92

Finding the Fourth Proportional to 28,972,664.25, 39,982,267.51 and 15,920,763.92

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Solution

The fourth proportional to 28,972,664.25, 39,982,267.51 and 15,920,763.92 is: 21,970,649.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,972,664.25 : 39,982,267.51 = 15,920,763.92 : x
  2. Step 2: Convert to fraction form
    28,972,664.25/39,982,267.51 = 15,920,763.92/x
  3. Step 3: Cross multiply
    28,972,664.25x = 39,982,267.51 × 15,920,763.92
  4. Step 4: Simplify right side
    28,972,664.25x = 636,548,241,923,216.50
  5. Step 5: Solve for x
    x = 636,548,241,923,216.50/28,972,664.25
  6. Step 6: Final answer
    x = 21,970,649.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.