Home / 10,557,621.80-15,836,432.70-8,290,140.20

Finding the Fourth Proportional to 10,557,621.80, 15,836,432.70 and 8,290,140.20

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Solution

The fourth proportional to 10,557,621.80, 15,836,432.70 and 8,290,140.20 is: 12,435,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,557,621.80 : 15,836,432.70 = 8,290,140.20 : x
  2. Step 2: Convert to fraction form
    10,557,621.80/15,836,432.70 = 8,290,140.20/x
  3. Step 3: Cross multiply
    10,557,621.80x = 15,836,432.70 × 8,290,140.20
  4. Step 4: Simplify right side
    10,557,621.80x = 131,286,247,350,864.53
  5. Step 5: Solve for x
    x = 131,286,247,350,864.53/10,557,621.80
  6. Step 6: Final answer
    x = 12,435,210.30

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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.