Home / 28,719,020.10-43,078,530.15-20,656,863.30

Finding the Fourth Proportional to 28,719,020.10, 43,078,530.15 and 20,656,863.30

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Solution

The fourth proportional to 28,719,020.10, 43,078,530.15 and 20,656,863.30 is: 30,985,294.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,719,020.10 : 43,078,530.15 = 20,656,863.30 : x
  2. Step 2: Convert to fraction form
    28,719,020.10/43,078,530.15 = 20,656,863.30/x
  3. Step 3: Cross multiply
    28,719,020.10x = 43,078,530.15 × 20,656,863.30
  4. Step 4: Simplify right side
    28,719,020.10x = 889,867,308,473,478.50
  5. Step 5: Solve for x
    x = 889,867,308,473,478.50/28,719,020.10
  6. Step 6: Final answer
    x = 30,985,294.95

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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.