Home / 20,712,932.03-28,584,070.35-11,420,520.08

Finding the Fourth Proportional to 20,712,932.03, 28,584,070.35 and 11,420,520.08

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Solution

The fourth proportional to 20,712,932.03, 28,584,070.35 and 11,420,520.08 is: 15,760,441.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712,932.03 : 28,584,070.35 = 11,420,520.08 : x
  2. Step 2: Convert to fraction form
    20,712,932.03/28,584,070.35 = 11,420,520.08/x
  3. Step 3: Cross multiply
    20,712,932.03x = 28,584,070.35 × 11,420,520.08
  4. Step 4: Simplify right side
    20,712,932.03x = 326,444,949,400,307.62
  5. Step 5: Solve for x
    x = 326,444,949,400,307.62/20,712,932.03
  6. Step 6: Final answer
    x = 15,760,441.30

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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.