Home / 12,147,742.80-18,217,933.29-6,387,372.45

Finding the Fourth Proportional to 12,147,742.80, 18,217,933.29 and 6,387,372.45

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Solution

The fourth proportional to 12,147,742.80, 18,217,933.29 and 6,387,372.45 is: 9,579,123.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,147,742.80 : 18,217,933.29 = 6,387,372.45 : x
  2. Step 2: Convert to fraction form
    12,147,742.80/18,217,933.29 = 6,387,372.45/x
  3. Step 3: Cross multiply
    12,147,742.80x = 18,217,933.29 × 6,387,372.45
  4. Step 4: Simplify right side
    12,147,742.80x = 116,364,725,192,483.86
  5. Step 5: Solve for x
    x = 116,364,725,192,483.86/12,147,742.80
  6. Step 6: Final answer
    x = 9,579,123.23

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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.