Home / 18,717,439.20-28,052,539.20-9,112,135.20

Finding the Fourth Proportional to 18,717,439.20, 28,052,539.20 and 9,112,135.20

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Solution

The fourth proportional to 18,717,439.20, 28,052,539.20 and 9,112,135.20 is: 13,656,704.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717,439.20 : 28,052,539.20 = 9,112,135.20 : x
  2. Step 2: Convert to fraction form
    18,717,439.20/28,052,539.20 = 9,112,135.20/x
  3. Step 3: Cross multiply
    18,717,439.20x = 28,052,539.20 × 9,112,135.20
  4. Step 4: Simplify right side
    18,717,439.20x = 255,618,529,893,699.81
  5. Step 5: Solve for x
    x = 255,618,529,893,699.81/18,717,439.20
  6. Step 6: Final answer
    x = 13,656,704.17

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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.