Home / 12,290,432.20-18,435,648.30-5,913,140.20

Finding the Fourth Proportional to 12,290,432.20, 18,435,648.30 and 5,913,140.20

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Solution

The fourth proportional to 12,290,432.20, 18,435,648.30 and 5,913,140.20 is: 8,869,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,432.20 : 18,435,648.30 = 5,913,140.20 : x
  2. Step 2: Convert to fraction form
    12,290,432.20/18,435,648.30 = 5,913,140.20/x
  3. Step 3: Cross multiply
    12,290,432.20x = 18,435,648.30 × 5,913,140.20
  4. Step 4: Simplify right side
    12,290,432.20x = 109,012,573,075,791.67
  5. Step 5: Solve for x
    x = 109,012,573,075,791.67/12,290,432.20
  6. Step 6: Final answer
    x = 8,869,710.30

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Double scale
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Similar ratio
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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.