Home / 13,576,257.05-18,735,602.10-7,381,719.65

Finding the Fourth Proportional to 13,576,257.05, 18,735,602.10 and 7,381,719.65

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Solution

The fourth proportional to 13,576,257.05, 18,735,602.10 and 7,381,719.65 is: 10,186,972.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576,257.05 : 18,735,602.10 = 7,381,719.65 : x
  2. Step 2: Convert to fraction form
    13,576,257.05/18,735,602.10 = 7,381,719.65/x
  3. Step 3: Cross multiply
    13,576,257.05x = 18,735,602.10 × 7,381,719.65
  4. Step 4: Simplify right side
    13,576,257.05x = 138,300,962,222,990.28
  5. Step 5: Solve for x
    x = 138,300,962,222,990.28/13,576,257.05
  6. Step 6: Final answer
    x = 10,186,972.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.