Home / 57,091,436.12-78,786,259.26-30,985,954.76

Finding the Fourth Proportional to 57,091,436.12, 78,786,259.26 and 30,985,954.76

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Solution

The fourth proportional to 57,091,436.12, 78,786,259.26 and 30,985,954.76 is: 42,760,659.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,091,436.12 : 78,786,259.26 = 30,985,954.76 : x
  2. Step 2: Convert to fraction form
    57,091,436.12/78,786,259.26 = 30,985,954.76/x
  3. Step 3: Cross multiply
    57,091,436.12x = 78,786,259.26 × 30,985,954.76
  4. Step 4: Simplify right side
    57,091,436.12x = 2,441,267,465,139,991.50
  5. Step 5: Solve for x
    x = 2,441,267,465,139,991.50/57,091,436.12
  6. Step 6: Final answer
    x = 42,760,659.58

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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.