Home / 12,096,743.40-18,145,115.10-7,309,837.80

Finding the Fourth Proportional to 12,096,743.40, 18,145,115.10 and 7,309,837.80

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Solution

The fourth proportional to 12,096,743.40, 18,145,115.10 and 7,309,837.80 is: 10,964,756.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,096,743.40 : 18,145,115.10 = 7,309,837.80 : x
  2. Step 2: Convert to fraction form
    12,096,743.40/18,145,115.10 = 7,309,837.80/x
  3. Step 3: Cross multiply
    12,096,743.40x = 18,145,115.10 × 7,309,837.80
  4. Step 4: Simplify right side
    12,096,743.40x = 132,637,848,243,330.78
  5. Step 5: Solve for x
    x = 132,637,848,243,330.78/12,096,743.40
  6. Step 6: Final answer
    x = 10,964,756.70

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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.