Home / 12,407,152.20-18,610,728.30-9,218,506.20

Finding the Fourth Proportional to 12,407,152.20, 18,610,728.30 and 9,218,506.20

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Solution

The fourth proportional to 12,407,152.20, 18,610,728.30 and 9,218,506.20 is: 13,827,759.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,407,152.20 : 18,610,728.30 = 9,218,506.20 : x
  2. Step 2: Convert to fraction form
    12,407,152.20/18,610,728.30 = 9,218,506.20/x
  3. Step 3: Cross multiply
    12,407,152.20x = 18,610,728.30 × 9,218,506.20
  4. Step 4: Simplify right side
    12,407,152.20x = 171,563,114,220,065.44
  5. Step 5: Solve for x
    x = 171,563,114,220,065.44/12,407,152.20
  6. Step 6: Final answer
    x = 13,827,759.30

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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.