Home / 28,468,561.46-39,286,543.86-15,415,819.56

Finding the Fourth Proportional to 28,468,561.46, 39,286,543.86 and 15,415,819.56

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Solution

The fourth proportional to 28,468,561.46, 39,286,543.86 and 15,415,819.56 is: 21,273,792.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,468,561.46 : 39,286,543.86 = 15,415,819.56 : x
  2. Step 2: Convert to fraction form
    28,468,561.46/39,286,543.86 = 15,415,819.56/x
  3. Step 3: Cross multiply
    28,468,561.46x = 39,286,543.86 × 15,415,819.56
  4. Step 4: Simplify right side
    28,468,561.46x = 605,634,271,281,785.88
  5. Step 5: Solve for x
    x = 605,634,271,281,785.88/28,468,561.46
  6. Step 6: Final answer
    x = 21,273,792.57

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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.