Home / 20,657,538.70-30,986,308.05-19,382,080.30

Finding the Fourth Proportional to 20,657,538.70, 30,986,308.05 and 19,382,080.30

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Solution

The fourth proportional to 20,657,538.70, 30,986,308.05 and 19,382,080.30 is: 29,073,120.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657,538.70 : 30,986,308.05 = 19,382,080.30 : x
  2. Step 2: Convert to fraction form
    20,657,538.70/30,986,308.05 = 19,382,080.30/x
  3. Step 3: Cross multiply
    20,657,538.70x = 30,986,308.05 × 19,382,080.30
  4. Step 4: Simplify right side
    20,657,538.70x = 600,579,110,825,636.50
  5. Step 5: Solve for x
    x = 600,579,110,825,636.50/20,657,538.70
  6. Step 6: Final answer
    x = 29,073,120.45

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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.