Home / 12,116,487.40-18,152,612.70-7,383,149.80

Finding the Fourth Proportional to 12,116,487.40, 18,152,612.70 and 7,383,149.80

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Solution

The fourth proportional to 12,116,487.40, 18,152,612.70 and 7,383,149.80 is: 11,061,246.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116,487.40 : 18,152,612.70 = 7,383,149.80 : x
  2. Step 2: Convert to fraction form
    12,116,487.40/18,152,612.70 = 7,383,149.80/x
  3. Step 3: Cross multiply
    12,116,487.40x = 18,152,612.70 × 7,383,149.80
  4. Step 4: Simplify right side
    12,116,487.40x = 134,023,458,825,482.45
  5. Step 5: Solve for x
    x = 134,023,458,825,482.45/12,116,487.40
  6. Step 6: Final answer
    x = 11,061,246.91

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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.