Home / 86,212,538.03-129,335,869.76-31,625,600.42

Finding the Fourth Proportional to 86,212,538.03, 129,335,869.76 and 31,625,600.42

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Solution

The fourth proportional to 86,212,538.03, 129,335,869.76 and 31,625,600.42 is: 47,444,659.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,212,538.03 : 129,335,869.76 = 31,625,600.42 : x
  2. Step 2: Convert to fraction form
    86,212,538.03/129,335,869.76 = 31,625,600.42/x
  3. Step 3: Cross multiply
    86,212,538.03x = 129,335,869.76 × 31,625,600.42
  4. Step 4: Simplify right side
    86,212,538.03x = 4,090,324,537,002,921.50
  5. Step 5: Solve for x
    x = 4,090,324,537,002,921.50/86,212,538.03
  6. Step 6: Final answer
    x = 47,444,659.80

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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.