Home / 10,352,405.20-15,528,607.80-2,780,136.40

Finding the Fourth Proportional to 10,352,405.20, 15,528,607.80 and 2,780,136.40

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Solution

The fourth proportional to 10,352,405.20, 15,528,607.80 and 2,780,136.40 is: 4,170,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,352,405.20 : 15,528,607.80 = 2,780,136.40 : x
  2. Step 2: Convert to fraction form
    10,352,405.20/15,528,607.80 = 2,780,136.40/x
  3. Step 3: Cross multiply
    10,352,405.20x = 15,528,607.80 × 2,780,136.40
  4. Step 4: Simplify right side
    10,352,405.20x = 43,171,647,786,103.92
  5. Step 5: Solve for x
    x = 43,171,647,786,103.92/10,352,405.20
  6. Step 6: Final answer
    x = 4,170,204.60

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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.