Home / 18,215,666.10-25,120,228.68-11,926,808.96

Finding the Fourth Proportional to 18,215,666.10, 25,120,228.68 and 11,926,808.96

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Solution

The fourth proportional to 18,215,666.10, 25,120,228.68 and 11,926,808.96 is: 16,447,609.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215,666.10 : 25,120,228.68 = 11,926,808.96 : x
  2. Step 2: Convert to fraction form
    18,215,666.10/25,120,228.68 = 11,926,808.96/x
  3. Step 3: Cross multiply
    18,215,666.10x = 25,120,228.68 × 11,926,808.96
  4. Step 4: Simplify right side
    18,215,666.10x = 299,604,168,372,271.81
  5. Step 5: Solve for x
    x = 299,604,168,372,271.81/18,215,666.10
  6. Step 6: Final answer
    x = 16,447,609.81

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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.