Home / 12,455,422.60-18,683,133.90-10,471,376.20

Finding the Fourth Proportional to 12,455,422.60, 18,683,133.90 and 10,471,376.20

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Solution

The fourth proportional to 12,455,422.60, 18,683,133.90 and 10,471,376.20 is: 15,707,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,422.60 : 18,683,133.90 = 10,471,376.20 : x
  2. Step 2: Convert to fraction form
    12,455,422.60/18,683,133.90 = 10,471,376.20/x
  3. Step 3: Cross multiply
    12,455,422.60x = 18,683,133.90 × 10,471,376.20
  4. Step 4: Simplify right side
    12,455,422.60x = 195,638,123,661,873.16
  5. Step 5: Solve for x
    x = 195,638,123,661,873.16/12,455,422.60
  6. Step 6: Final answer
    x = 15,707,064.30

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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.