Home / 12,456,321.60-18,675,515.12-7,654,089.04

Finding the Fourth Proportional to 12,456,321.60, 18,675,515.12 and 7,654,089.04

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Solution

The fourth proportional to 12,456,321.60, 18,675,515.12 and 7,654,089.04 is: 11,475,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,321.60 : 18,675,515.12 = 7,654,089.04 : x
  2. Step 2: Convert to fraction form
    12,456,321.60/18,675,515.12 = 7,654,089.04/x
  3. Step 3: Cross multiply
    12,456,321.60x = 18,675,515.12 × 7,654,089.04
  4. Step 4: Simplify right side
    12,456,321.60x = 142,944,055,596,346.28
  5. Step 5: Solve for x
    x = 142,944,055,596,346.28/12,456,321.60
  6. Step 6: Final answer
    x = 11,475,623.40

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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.