Home / 65,230,031.62-90,010,129.53-39,125,610.82

Finding the Fourth Proportional to 65,230,031.62, 90,010,129.53 and 39,125,610.82

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Solution

The fourth proportional to 65,230,031.62, 90,010,129.53 and 39,125,610.82 is: 53,988,955.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,230,031.62 : 90,010,129.53 = 39,125,610.82 : x
  2. Step 2: Convert to fraction form
    65,230,031.62/90,010,129.53 = 39,125,610.82/x
  3. Step 3: Cross multiply
    65,230,031.62x = 90,010,129.53 × 39,125,610.82
  4. Step 4: Simplify right side
    65,230,031.62x = 3,521,701,297,848,569.50
  5. Step 5: Solve for x
    x = 3,521,701,297,848,569.50/65,230,031.62
  6. Step 6: Final answer
    x = 53,988,955.86

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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.