Home / 28,256,706.92-38,991,590.30-15,864,380.02

Finding the Fourth Proportional to 28,256,706.92, 38,991,590.30 and 15,864,380.02

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Solution

The fourth proportional to 28,256,706.92, 38,991,590.30 and 15,864,380.02 is: 21,891,348.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256,706.92 : 38,991,590.30 = 15,864,380.02 : x
  2. Step 2: Convert to fraction form
    28,256,706.92/38,991,590.30 = 15,864,380.02/x
  3. Step 3: Cross multiply
    28,256,706.92x = 38,991,590.30 × 15,864,380.02
  4. Step 4: Simplify right side
    28,256,706.92x = 618,577,406,103,345.75
  5. Step 5: Solve for x
    x = 618,577,406,103,345.75/28,256,706.92
  6. Step 6: Final answer
    x = 21,891,348.06

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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.