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Finding the Fourth Proportional to 43,438,528.90, 65,156,797.05 and 21,867,337.90

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Solution

The fourth proportional to 43,438,528.90, 65,156,797.05 and 21,867,337.90 is: 32,800,505.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,438,528.90 : 65,156,797.05 = 21,867,337.90 : x
  2. Step 2: Convert to fraction form
    43,438,528.90/65,156,797.05 = 21,867,337.90/x
  3. Step 3: Cross multiply
    43,438,528.90x = 65,156,797.05 × 21,867,337.90
  4. Step 4: Simplify right side
    43,438,528.90x = 1,424,805,697,574,073
  5. Step 5: Solve for x
    x = 1,424,805,697,574,073/43,438,528.90
  6. Step 6: Final answer
    x = 32,800,505.30

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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.