Home / 85,524,110.70-128,286,166.05-28,018,257.90

Finding the Fourth Proportional to 85,524,110.70, 128,286,166.05 and 28,018,257.90

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Solution

The fourth proportional to 85,524,110.70, 128,286,166.05 and 28,018,257.90 is: 42,027,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,524,110.70 : 128,286,166.05 = 28,018,257.90 : x
  2. Step 2: Convert to fraction form
    85,524,110.70/128,286,166.05 = 28,018,257.90/x
  3. Step 3: Cross multiply
    85,524,110.70x = 128,286,166.05 × 28,018,257.90
  4. Step 4: Simplify right side
    85,524,110.70x = 3,594,354,885,391,124
  5. Step 5: Solve for x
    x = 3,594,354,885,391,124/85,524,110.70
  6. Step 6: Final answer
    x = 42,027,386.85

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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.