Home / 10,352,408.20-15,528,612.30-2,780,139.40

Finding the Fourth Proportional to 10,352,408.20, 15,528,612.30 and 2,780,139.40

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Solution

The fourth proportional to 10,352,408.20, 15,528,612.30 and 2,780,139.40 is: 4,170,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,352,408.20 : 15,528,612.30 = 2,780,139.40 : x
  2. Step 2: Convert to fraction form
    10,352,408.20/15,528,612.30 = 2,780,139.40/x
  3. Step 3: Cross multiply
    10,352,408.20x = 15,528,612.30 × 2,780,139.40
  4. Step 4: Simplify right side
    10,352,408.20x = 43,171,706,882,554.62
  5. Step 5: Solve for x
    x = 43,171,706,882,554.62/10,352,408.20
  6. Step 6: Final answer
    x = 4,170,209.10

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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.