Home / 12,558,209.60-18,809,320.80-9,702,862.40

Finding the Fourth Proportional to 12,558,209.60, 18,809,320.80 and 9,702,862.40

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Solution

The fourth proportional to 12,558,209.60, 18,809,320.80 and 9,702,862.40 is: 14,532,664.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558,209.60 : 18,809,320.80 = 9,702,862.40 : x
  2. Step 2: Convert to fraction form
    12,558,209.60/18,809,320.80 = 9,702,862.40/x
  3. Step 3: Cross multiply
    12,558,209.60x = 18,809,320.80 × 9,702,862.40
  4. Step 4: Simplify right side
    12,558,209.60x = 182,504,251,559,857.94
  5. Step 5: Solve for x
    x = 182,504,251,559,857.94/12,558,209.60
  6. Step 6: Final answer
    x = 14,532,664.88

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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.