Home / 20,657,528.20-30,986,292.30-19,382,069.80

Finding the Fourth Proportional to 20,657,528.20, 30,986,292.30 and 19,382,069.80

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Solution

The fourth proportional to 20,657,528.20, 30,986,292.30 and 19,382,069.80 is: 29,073,104.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657,528.20 : 30,986,292.30 = 19,382,069.80 : x
  2. Step 2: Convert to fraction form
    20,657,528.20/30,986,292.30 = 19,382,069.80/x
  3. Step 3: Cross multiply
    20,657,528.20x = 30,986,292.30 × 19,382,069.80
  4. Step 4: Simplify right side
    20,657,528.20x = 600,578,480,201,802.62
  5. Step 5: Solve for x
    x = 600,578,480,201,802.62/20,657,528.20
  6. Step 6: Final answer
    x = 29,073,104.70

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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.