Home / 12,762,961.60-19,144,442.40-9,179,780.80

Finding the Fourth Proportional to 12,762,961.60, 19,144,442.40 and 9,179,780.80

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Solution

The fourth proportional to 12,762,961.60, 19,144,442.40 and 9,179,780.80 is: 13,769,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,762,961.60 : 19,144,442.40 = 9,179,780.80 : x
  2. Step 2: Convert to fraction form
    12,762,961.60/19,144,442.40 = 9,179,780.80/x
  3. Step 3: Cross multiply
    12,762,961.60x = 19,144,442.40 × 9,179,780.80
  4. Step 4: Simplify right side
    12,762,961.60x = 175,741,784,770,225.91
  5. Step 5: Solve for x
    x = 175,741,784,770,225.91/12,762,961.60
  6. Step 6: Final answer
    x = 13,769,671.20

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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.