Home / 13,175,967-18,182,830.42-7,374,747.21

Finding the Fourth Proportional to 13,175,967, 18,182,830.42 and 7,374,747.21

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Solution

The fourth proportional to 13,175,967, 18,182,830.42 and 7,374,747.21 is: 10,177,148.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,175,967 : 18,182,830.42 = 7,374,747.21 : x
  2. Step 2: Convert to fraction form
    13,175,967/18,182,830.42 = 7,374,747.21/x
  3. Step 3: Cross multiply
    13,175,967x = 18,182,830.42 × 7,374,747.21
  4. Step 4: Simplify right side
    13,175,967x = 134,093,777,909,798.14
  5. Step 5: Solve for x
    x = 134,093,777,909,798.14/13,175,967
  6. Step 6: Final answer
    x = 10,177,148.89

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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.