Home / 18,689,381.12-25,791,297.54-10,429,356.62

Finding the Fourth Proportional to 18,689,381.12, 25,791,297.54 and 10,429,356.62

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Solution

The fourth proportional to 18,689,381.12, 25,791,297.54 and 10,429,356.62 is: 14,392,485.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,381.12 : 25,791,297.54 = 10,429,356.62 : x
  2. Step 2: Convert to fraction form
    18,689,381.12/25,791,297.54 = 10,429,356.62/x
  3. Step 3: Cross multiply
    18,689,381.12x = 25,791,297.54 × 10,429,356.62
  4. Step 4: Simplify right side
    18,689,381.12x = 268,986,639,737,188.69
  5. Step 5: Solve for x
    x = 268,986,639,737,188.69/18,689,381.12
  6. Step 6: Final answer
    x = 14,392,485.12

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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.