Home / 11,191,680.80-16,787,521.20-7,790,458.40

Finding the Fourth Proportional to 11,191,680.80, 16,787,521.20 and 7,790,458.40

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Solution

The fourth proportional to 11,191,680.80, 16,787,521.20 and 7,790,458.40 is: 11,685,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191,680.80 : 16,787,521.20 = 7,790,458.40 : x
  2. Step 2: Convert to fraction form
    11,191,680.80/16,787,521.20 = 7,790,458.40/x
  3. Step 3: Cross multiply
    11,191,680.80x = 16,787,521.20 × 7,790,458.40
  4. Step 4: Simplify right side
    11,191,680.80x = 130,782,485,547,718.08
  5. Step 5: Solve for x
    x = 130,782,485,547,718.08/11,191,680.80
  6. Step 6: Final answer
    x = 11,685,687.60

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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.