Home / 15,476,876.80-23,215,315.20-7,824,126.40

Finding the Fourth Proportional to 15,476,876.80, 23,215,315.20 and 7,824,126.40

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Solution

The fourth proportional to 15,476,876.80, 23,215,315.20 and 7,824,126.40 is: 11,736,189.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,476,876.80 : 23,215,315.20 = 7,824,126.40 : x
  2. Step 2: Convert to fraction form
    15,476,876.80/23,215,315.20 = 7,824,126.40/x
  3. Step 3: Cross multiply
    15,476,876.80x = 23,215,315.20 × 7,824,126.40
  4. Step 4: Simplify right side
    15,476,876.80x = 181,639,560,540,641.28
  5. Step 5: Solve for x
    x = 181,639,560,540,641.28/15,476,876.80
  6. Step 6: Final answer
    x = 11,736,189.60

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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.