Home / 76,871,566.40-115,248,300.60-38,560,575.20

Finding the Fourth Proportional to 76,871,566.40, 115,248,300.60 and 38,560,575.20

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Solution

The fourth proportional to 76,871,566.40, 115,248,300.60 and 38,560,575.20 is: 57,811,242.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,871,566.40 : 115,248,300.60 = 38,560,575.20 : x
  2. Step 2: Convert to fraction form
    76,871,566.40/115,248,300.60 = 38,560,575.20/x
  3. Step 3: Cross multiply
    76,871,566.40x = 115,248,300.60 × 38,560,575.20
  4. Step 4: Simplify right side
    76,871,566.40x = 4,444,040,761,958,505
  5. Step 5: Solve for x
    x = 4,444,040,761,958,505/76,871,566.40
  6. Step 6: Final answer
    x = 57,811,242.44

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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.