Home / 28,431,214.20-42,646,821.30-18,794,417.40

Finding the Fourth Proportional to 28,431,214.20, 42,646,821.30 and 18,794,417.40

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Solution

The fourth proportional to 28,431,214.20, 42,646,821.30 and 18,794,417.40 is: 28,191,626.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,431,214.20 : 42,646,821.30 = 18,794,417.40 : x
  2. Step 2: Convert to fraction form
    28,431,214.20/42,646,821.30 = 18,794,417.40/x
  3. Step 3: Cross multiply
    28,431,214.20x = 42,646,821.30 × 18,794,417.40
  4. Step 4: Simplify right side
    28,431,214.20x = 801,522,160,295,410.50
  5. Step 5: Solve for x
    x = 801,522,160,295,410.50/28,431,214.20
  6. Step 6: Final answer
    x = 28,191,626.10

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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.