Home / 12,990,849.60-19,469,685.60-9,984,129.60

Finding the Fourth Proportional to 12,990,849.60, 19,469,685.60 and 9,984,129.60

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Solution

The fourth proportional to 12,990,849.60, 19,469,685.60 and 9,984,129.60 is: 14,963,445.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,990,849.60 : 19,469,685.60 = 9,984,129.60 : x
  2. Step 2: Convert to fraction form
    12,990,849.60/19,469,685.60 = 9,984,129.60/x
  3. Step 3: Cross multiply
    12,990,849.60x = 19,469,685.60 × 9,984,129.60
  4. Step 4: Simplify right side
    12,990,849.60x = 194,387,864,301,653.78
  5. Step 5: Solve for x
    x = 194,387,864,301,653.78/12,990,849.60
  6. Step 6: Final answer
    x = 14,963,445.06

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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.