Home / 18,686,923.20-28,006,765.20-9,081,619.20

Finding the Fourth Proportional to 18,686,923.20, 28,006,765.20 and 9,081,619.20

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Solution

The fourth proportional to 18,686,923.20, 28,006,765.20 and 9,081,619.20 is: 13,610,949.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686,923.20 : 28,006,765.20 = 9,081,619.20 : x
  2. Step 2: Convert to fraction form
    18,686,923.20/28,006,765.20 = 9,081,619.20/x
  3. Step 3: Cross multiply
    18,686,923.20x = 28,006,765.20 × 9,081,619.20
  4. Step 4: Simplify right side
    18,686,923.20x = 254,346,776,570,211.81
  5. Step 5: Solve for x
    x = 254,346,776,570,211.81/18,686,923.20
  6. Step 6: Final answer
    x = 13,610,949.96

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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.