Home / 28,185,138.09-42,262,321.59-8,486,391.69

Finding the Fourth Proportional to 28,185,138.09, 42,262,321.59 and 8,486,391.69

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Solution

The fourth proportional to 28,185,138.09, 42,262,321.59 and 8,486,391.69 is: 12,724,955.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,185,138.09 : 42,262,321.59 = 8,486,391.69 : x
  2. Step 2: Convert to fraction form
    28,185,138.09/42,262,321.59 = 8,486,391.69/x
  3. Step 3: Cross multiply
    28,185,138.09x = 42,262,321.59 × 8,486,391.69
  4. Step 4: Simplify right side
    28,185,138.09x = 358,654,614,741,483.62
  5. Step 5: Solve for x
    x = 358,654,614,741,483.62/28,185,138.09
  6. Step 6: Final answer
    x = 12,724,955.03

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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.