Home / 12,984,485.70-19,476,728.55-12,431,612.10

Finding the Fourth Proportional to 12,984,485.70, 19,476,728.55 and 12,431,612.10

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Solution

The fourth proportional to 12,984,485.70, 19,476,728.55 and 12,431,612.10 is: 18,647,418.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984,485.70 : 19,476,728.55 = 12,431,612.10 : x
  2. Step 2: Convert to fraction form
    12,984,485.70/19,476,728.55 = 12,431,612.10/x
  3. Step 3: Cross multiply
    12,984,485.70x = 19,476,728.55 × 12,431,612.10
  4. Step 4: Simplify right side
    12,984,485.70x = 242,127,134,310,595.47
  5. Step 5: Solve for x
    x = 242,127,134,310,595.47/12,984,485.70
  6. Step 6: Final answer
    x = 18,647,418.15

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Double scale
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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.