Home / 28,821,854.46-39,774,112.56-15,769,166

Finding the Fourth Proportional to 28,821,854.46, 39,774,112.56 and 15,769,166

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Solution

The fourth proportional to 28,821,854.46, 39,774,112.56 and 15,769,166 is: 21,761,423.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,821,854.46 : 39,774,112.56 = 15,769,166 : x
  2. Step 2: Convert to fraction form
    28,821,854.46/39,774,112.56 = 15,769,166/x
  3. Step 3: Cross multiply
    28,821,854.46x = 39,774,112.56 × 15,769,166
  4. Step 4: Simplify right side
    28,821,854.46x = 627,204,583,461,325
  5. Step 5: Solve for x
    x = 627,204,583,461,325/28,821,854.46
  6. Step 6: Final answer
    x = 21,761,423.59

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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.