Home / 18,960,339.40-28,392,395.10-10,431,039.40

Finding the Fourth Proportional to 18,960,339.40, 28,392,395.10 and 10,431,039.40

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Solution

The fourth proportional to 18,960,339.40, 28,392,395.10 and 10,431,039.40 is: 15,620,089.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,960,339.40 : 28,392,395.10 = 10,431,039.40 : x
  2. Step 2: Convert to fraction form
    18,960,339.40/28,392,395.10 = 10,431,039.40/x
  3. Step 3: Cross multiply
    18,960,339.40x = 28,392,395.10 × 10,431,039.40
  4. Step 4: Simplify right side
    18,960,339.40x = 296,162,191,948,466.94
  5. Step 5: Solve for x
    x = 296,162,191,948,466.94/18,960,339.40
  6. Step 6: Final answer
    x = 15,620,089.16

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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.