Home / 15,533,179.20-21,435,886.80-8,658,097.20

Finding the Fourth Proportional to 15,533,179.20, 21,435,886.80 and 8,658,097.20

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Solution

The fourth proportional to 15,533,179.20, 21,435,886.80 and 8,658,097.20 is: 11,948,229.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,533,179.20 : 21,435,886.80 = 8,658,097.20 : x
  2. Step 2: Convert to fraction form
    15,533,179.20/21,435,886.80 = 8,658,097.20/x
  3. Step 3: Cross multiply
    15,533,179.20x = 21,435,886.80 × 8,658,097.20
  4. Step 4: Simplify right side
    15,533,179.20x = 185,593,991,482,596.94
  5. Step 5: Solve for x
    x = 185,593,991,482,596.94/15,533,179.20
  6. Step 6: Final answer
    x = 11,948,229.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.