Home / 12,447,759.40-18,671,639.10-11,691,932.20

Finding the Fourth Proportional to 12,447,759.40, 18,671,639.10 and 11,691,932.20

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Solution

The fourth proportional to 12,447,759.40, 18,671,639.10 and 11,691,932.20 is: 17,537,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447,759.40 : 18,671,639.10 = 11,691,932.20 : x
  2. Step 2: Convert to fraction form
    12,447,759.40/18,671,639.10 = 11,691,932.20/x
  3. Step 3: Cross multiply
    12,447,759.40x = 18,671,639.10 × 11,691,932.20
  4. Step 4: Simplify right side
    12,447,759.40x = 218,307,538,420,069.03
  5. Step 5: Solve for x
    x = 218,307,538,420,069.03/12,447,759.40
  6. Step 6: Final answer
    x = 17,537,898.30

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1.5x scale

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.