Home / 38,524,459.41-53,162,343.23-21,120,422.76

Finding the Fourth Proportional to 38,524,459.41, 53,162,343.23 and 21,120,422.76

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Solution

The fourth proportional to 38,524,459.41, 53,162,343.23 and 21,120,422.76 is: 29,145,409.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,524,459.41 : 53,162,343.23 = 21,120,422.76 : x
  2. Step 2: Convert to fraction form
    38,524,459.41/53,162,343.23 = 21,120,422.76/x
  3. Step 3: Cross multiply
    38,524,459.41x = 53,162,343.23 × 21,120,422.76
  4. Step 4: Simplify right side
    38,524,459.41x = 1,122,811,163,824,221.88
  5. Step 5: Solve for x
    x = 1,122,811,163,824,221.88/38,524,459.41
  6. Step 6: Final answer
    x = 29,145,409.98

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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.