Home / 12,585,853.60-17,369,811.28-7,693,939.60

Finding the Fourth Proportional to 12,585,853.60, 17,369,811.28 and 7,693,939.60

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Solution

The fourth proportional to 12,585,853.60, 17,369,811.28 and 7,693,939.60 is: 10,618,451.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,585,853.60 : 17,369,811.28 = 7,693,939.60 : x
  2. Step 2: Convert to fraction form
    12,585,853.60/17,369,811.28 = 7,693,939.60/x
  3. Step 3: Cross multiply
    12,585,853.60x = 17,369,811.28 × 7,693,939.60
  4. Step 4: Simplify right side
    12,585,853.60x = 133,642,278,851,718.69
  5. Step 5: Solve for x
    x = 133,642,278,851,718.69/12,585,853.60
  6. Step 6: Final answer
    x = 10,618,451.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.