Home / 12,711,619.20-19,067,428.80-6,739,651.20

Finding the Fourth Proportional to 12,711,619.20, 19,067,428.80 and 6,739,651.20

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Solution

The fourth proportional to 12,711,619.20, 19,067,428.80 and 6,739,651.20 is: 10,109,476.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711,619.20 : 19,067,428.80 = 6,739,651.20 : x
  2. Step 2: Convert to fraction form
    12,711,619.20/19,067,428.80 = 6,739,651.20/x
  3. Step 3: Cross multiply
    12,711,619.20x = 19,067,428.80 × 6,739,651.20
  4. Step 4: Simplify right side
    12,711,619.20x = 128,507,819,392,834.56
  5. Step 5: Solve for x
    x = 128,507,819,392,834.56/12,711,619.20
  6. Step 6: Final answer
    x = 10,109,476.80

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1.5x scale

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.