Home / 12,618,479.43-18,920,138.18-4,932,970.47

Finding the Fourth Proportional to 12,618,479.43, 18,920,138.18 and 4,932,970.47

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Solution

The fourth proportional to 12,618,479.43, 18,920,138.18 and 4,932,970.47 is: 7,396,492.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618,479.43 : 18,920,138.18 = 4,932,970.47 : x
  2. Step 2: Convert to fraction form
    12,618,479.43/18,920,138.18 = 4,932,970.47/x
  3. Step 3: Cross multiply
    12,618,479.43x = 18,920,138.18 × 4,932,970.47
  4. Step 4: Simplify right side
    12,618,479.43x = 93,332,482,905,594.69
  5. Step 5: Solve for x
    x = 93,332,482,905,594.69/12,618,479.43
  6. Step 6: Final answer
    x = 7,396,492.06

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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.