Home / 43,321,741.72-64,996,500.48-12,618,167.14

Finding the Fourth Proportional to 43,321,741.72, 64,996,500.48 and 12,618,167.14

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Solution

The fourth proportional to 43,321,741.72, 64,996,500.48 and 12,618,167.14 is: 18,931,295.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,321,741.72 : 64,996,500.48 = 12,618,167.14 : x
  2. Step 2: Convert to fraction form
    43,321,741.72/64,996,500.48 = 12,618,167.14/x
  3. Step 3: Cross multiply
    43,321,741.72x = 64,996,500.48 × 12,618,167.14
  4. Step 4: Simplify right side
    43,321,741.72x = 820,136,706,676,634.88
  5. Step 5: Solve for x
    x = 820,136,706,676,634.88/43,321,741.72
  6. Step 6: Final answer
    x = 18,931,295.79

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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.