Home / 18,686,041.80-28,029,062.70-18,560,070.60

Finding the Fourth Proportional to 18,686,041.80, 28,029,062.70 and 18,560,070.60

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Solution

The fourth proportional to 18,686,041.80, 28,029,062.70 and 18,560,070.60 is: 27,840,105.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686,041.80 : 28,029,062.70 = 18,560,070.60 : x
  2. Step 2: Convert to fraction form
    18,686,041.80/28,029,062.70 = 18,560,070.60/x
  3. Step 3: Cross multiply
    18,686,041.80x = 28,029,062.70 × 18,560,070.60
  4. Step 4: Simplify right side
    18,686,041.80x = 520,221,382,563,826.62
  5. Step 5: Solve for x
    x = 520,221,382,563,826.62/18,686,041.80
  6. Step 6: Final answer
    x = 27,840,105.90

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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.