Home / 28,434,479,297.92-39,220,687,367.76-18,286,037,749.36

Finding the Fourth Proportional to 28,434,479,297.92, 39,220,687,367.76 and 18,286,037,749.36

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Solution

The fourth proportional to 28,434,479,297.92, 39,220,687,367.76 and 18,286,037,749.36 is: 25,222,581,438.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,434,479,297.92 : 39,220,687,367.76 = 18,286,037,749.36 : x
  2. Step 2: Convert to fraction form
    28,434,479,297.92/39,220,687,367.76 = 18,286,037,749.36/x
  3. Step 3: Cross multiply
    28,434,479,297.92x = 39,220,687,367.76 × 18,286,037,749.36
  4. Step 4: Simplify right side
    28,434,479,297.92x = 717,190,969,762,706,358,272
  5. Step 5: Solve for x
    x = 717,190,969,762,706,358,272/28,434,479,297.92
  6. Step 6: Final answer
    x = 25,222,581,438.84

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1.5x scale

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.