Home / 18,894,429.60-28,344,409.20-9,919,658.40

Finding the Fourth Proportional to 18,894,429.60, 28,344,409.20 and 9,919,658.40

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Solution

The fourth proportional to 18,894,429.60, 28,344,409.20 and 9,919,658.40 is: 14,880,939.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,894,429.60 : 28,344,409.20 = 9,919,658.40 : x
  2. Step 2: Convert to fraction form
    18,894,429.60/28,344,409.20 = 9,919,658.40/x
  3. Step 3: Cross multiply
    18,894,429.60x = 28,344,409.20 × 9,919,658.40
  4. Step 4: Simplify right side
    18,894,429.60x = 281,166,856,813,817.28
  5. Step 5: Solve for x
    x = 281,166,856,813,817.28/18,894,429.60
  6. Step 6: Final answer
    x = 14,880,939.13

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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.