Home / 7,920,948.74-11,883,981.92-3,663,909.50

Finding the Fourth Proportional to 7,920,948.74, 11,883,981.92 and 3,663,909.50

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Solution

The fourth proportional to 7,920,948.74, 11,883,981.92 and 3,663,909.50 is: 5,497,047.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920,948.74 : 11,883,981.92 = 3,663,909.50 : x
  2. Step 2: Convert to fraction form
    7,920,948.74/11,883,981.92 = 3,663,909.50/x
  3. Step 3: Cross multiply
    7,920,948.74x = 11,883,981.92 × 3,663,909.50
  4. Step 4: Simplify right side
    7,920,948.74x = 43,541,834,176,776.78
  5. Step 5: Solve for x
    x = 43,541,834,176,776.78/7,920,948.74
  6. Step 6: Final answer
    x = 5,497,047.85

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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.