Home / 13,317,839.24-18,381,689.34-7,812,982.55

Finding the Fourth Proportional to 13,317,839.24, 18,381,689.34 and 7,812,982.55

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Solution

The fourth proportional to 13,317,839.24, 18,381,689.34 and 7,812,982.55 is: 10,783,717.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317,839.24 : 18,381,689.34 = 7,812,982.55 : x
  2. Step 2: Convert to fraction form
    13,317,839.24/18,381,689.34 = 7,812,982.55/x
  3. Step 3: Cross multiply
    13,317,839.24x = 18,381,689.34 × 7,812,982.55
  4. Step 4: Simplify right side
    13,317,839.24x = 143,615,818,017,898.06
  5. Step 5: Solve for x
    x = 143,615,818,017,898.06/13,317,839.24
  6. Step 6: Final answer
    x = 10,783,717.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.