Home / 12,923,116.40-19,384,501.80-3,947,711.60

Finding the Fourth Proportional to 12,923,116.40, 19,384,501.80 and 3,947,711.60

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Solution

The fourth proportional to 12,923,116.40, 19,384,501.80 and 3,947,711.60 is: 5,921,514.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,923,116.40 : 19,384,501.80 = 3,947,711.60 : x
  2. Step 2: Convert to fraction form
    12,923,116.40/19,384,501.80 = 3,947,711.60/x
  3. Step 3: Cross multiply
    12,923,116.40x = 19,384,501.80 × 3,947,711.60
  4. Step 4: Simplify right side
    12,923,116.40x = 76,524,422,616,080.89
  5. Step 5: Solve for x
    x = 76,524,422,616,080.89/12,923,116.40
  6. Step 6: Final answer
    x = 5,921,514.61

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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.