Home / 12,591,618.30-18,887,427.45-9,851,744.70

Finding the Fourth Proportional to 12,591,618.30, 18,887,427.45 and 9,851,744.70

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Solution

The fourth proportional to 12,591,618.30, 18,887,427.45 and 9,851,744.70 is: 14,777,617.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591,618.30 : 18,887,427.45 = 9,851,744.70 : x
  2. Step 2: Convert to fraction form
    12,591,618.30/18,887,427.45 = 9,851,744.70/x
  3. Step 3: Cross multiply
    12,591,618.30x = 18,887,427.45 × 9,851,744.70
  4. Step 4: Simplify right side
    12,591,618.30x = 186,074,113,277,172
  5. Step 5: Solve for x
    x = 186,074,113,277,172/12,591,618.30
  6. Step 6: Final answer
    x = 14,777,617.05

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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.