Home / 7,920,890.88-11,879,433.28-3,656,964.48

Finding the Fourth Proportional to 7,920,890.88, 11,879,433.28 and 3,656,964.48

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Solution

The fourth proportional to 7,920,890.88, 11,879,433.28 and 3,656,964.48 is: 5,484,568.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920,890.88 : 11,879,433.28 = 3,656,964.48 : x
  2. Step 2: Convert to fraction form
    7,920,890.88/11,879,433.28 = 3,656,964.48/x
  3. Step 3: Cross multiply
    7,920,890.88x = 11,879,433.28 × 3,656,964.48
  4. Step 4: Simplify right side
    7,920,890.88x = 43,442,665,547,489.89
  5. Step 5: Solve for x
    x = 43,442,665,547,489.89/7,920,890.88
  6. Step 6: Final answer
    x = 5,484,568.11

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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.