Home / 3,120,156.80-4,680,235.20-2,553,286.40

Finding the Fourth Proportional to 3,120,156.80, 4,680,235.20 and 2,553,286.40

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Solution

The fourth proportional to 3,120,156.80, 4,680,235.20 and 2,553,286.40 is: 3,829,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,156.80 : 4,680,235.20 = 2,553,286.40 : x
  2. Step 2: Convert to fraction form
    3,120,156.80/4,680,235.20 = 2,553,286.40/x
  3. Step 3: Cross multiply
    3,120,156.80x = 4,680,235.20 × 2,553,286.40
  4. Step 4: Simplify right side
    3,120,156.80x = 11,949,980,884,961.28
  5. Step 5: Solve for x
    x = 11,949,980,884,961.28/3,120,156.80
  6. Step 6: Final answer
    x = 3,829,929.60

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1.5x scale

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.