Home / 28,195,260.84-38,911,385.22-15,972,218.28

Finding the Fourth Proportional to 28,195,260.84, 38,911,385.22 and 15,972,218.28

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Solution

The fourth proportional to 28,195,260.84, 38,911,385.22 and 15,972,218.28 is: 22,042,751.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,195,260.84 : 38,911,385.22 = 15,972,218.28 : x
  2. Step 2: Convert to fraction form
    28,195,260.84/38,911,385.22 = 15,972,218.28/x
  3. Step 3: Cross multiply
    28,195,260.84x = 38,911,385.22 × 15,972,218.28
  4. Step 4: Simplify right side
    28,195,260.84x = 621,501,138,311,005.75
  5. Step 5: Solve for x
    x = 621,501,138,311,005.75/28,195,260.84
  6. Step 6: Final answer
    x = 22,042,751.86

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1.5x scale

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.