Home / 21,784,478.46-30,049,317.27-13,413,195.42

Finding the Fourth Proportional to 21,784,478.46, 30,049,317.27 and 13,413,195.42

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Solution

The fourth proportional to 21,784,478.46, 30,049,317.27 and 13,413,195.42 is: 18,502,043.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,784,478.46 : 30,049,317.27 = 13,413,195.42 : x
  2. Step 2: Convert to fraction form
    21,784,478.46/30,049,317.27 = 13,413,195.42/x
  3. Step 3: Cross multiply
    21,784,478.46x = 30,049,317.27 × 13,413,195.42
  4. Step 4: Simplify right side
    21,784,478.46x = 403,057,364,780,090.88
  5. Step 5: Solve for x
    x = 403,057,364,780,090.88/21,784,478.46
  6. Step 6: Final answer
    x = 18,502,043.35

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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.