Home / 12,658,615.88-17,468,874.13-6,857,421.60

Finding the Fourth Proportional to 12,658,615.88, 17,468,874.13 and 6,857,421.60

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Solution

The fourth proportional to 12,658,615.88, 17,468,874.13 and 6,857,421.60 is: 9,463,233.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,658,615.88 : 17,468,874.13 = 6,857,421.60 : x
  2. Step 2: Convert to fraction form
    12,658,615.88/17,468,874.13 = 6,857,421.60/x
  3. Step 3: Cross multiply
    12,658,615.88x = 17,468,874.13 × 6,857,421.60
  4. Step 4: Simplify right side
    12,658,615.88x = 119,791,434,786,743.19
  5. Step 5: Solve for x
    x = 119,791,434,786,743.19/12,658,615.88
  6. Step 6: Final answer
    x = 9,463,233.26

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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.