Home / 18,821,378.40-28,260,061.20-14,566,351.20

Finding the Fourth Proportional to 18,821,378.40, 28,260,061.20 and 14,566,351.20

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Solution

The fourth proportional to 18,821,378.40, 28,260,061.20 and 14,566,351.20 is: 21,871,191.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821,378.40 : 28,260,061.20 = 14,566,351.20 : x
  2. Step 2: Convert to fraction form
    18,821,378.40/28,260,061.20 = 14,566,351.20/x
  3. Step 3: Cross multiply
    18,821,378.40x = 28,260,061.20 × 14,566,351.20
  4. Step 4: Simplify right side
    18,821,378.40x = 411,645,976,372,693.44
  5. Step 5: Solve for x
    x = 411,645,976,372,693.44/18,821,378.40
  6. Step 6: Final answer
    x = 21,871,191.77

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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.