Home / 18,678,989.67-25,777,646.79-10,837,909.87

Finding the Fourth Proportional to 18,678,989.67, 25,777,646.79 and 10,837,909.87

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Solution

The fourth proportional to 18,678,989.67, 25,777,646.79 and 10,837,909.87 is: 14,956,687.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,989.67 : 25,777,646.79 = 10,837,909.87 : x
  2. Step 2: Convert to fraction form
    18,678,989.67/25,777,646.79 = 10,837,909.87/x
  3. Step 3: Cross multiply
    18,678,989.67x = 25,777,646.79 × 10,837,909.87
  4. Step 4: Simplify right side
    18,678,989.67x = 279,375,812,570,714.78
  5. Step 5: Solve for x
    x = 279,375,812,570,714.78/18,678,989.67
  6. Step 6: Final answer
    x = 14,956,687.57

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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.