Home / 12,781,286.60-19,171,929.90-9,925,939.40

Finding the Fourth Proportional to 12,781,286.60, 19,171,929.90 and 9,925,939.40

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Solution

The fourth proportional to 12,781,286.60, 19,171,929.90 and 9,925,939.40 is: 14,888,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,286.60 : 19,171,929.90 = 9,925,939.40 : x
  2. Step 2: Convert to fraction form
    12,781,286.60/19,171,929.90 = 9,925,939.40/x
  3. Step 3: Cross multiply
    12,781,286.60x = 19,171,929.90 × 9,925,939.40
  4. Step 4: Simplify right side
    12,781,286.60x = 190,299,414,368,448.06
  5. Step 5: Solve for x
    x = 190,299,414,368,448.06/12,781,286.60
  6. Step 6: Final answer
    x = 14,888,909.10

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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.