Home / 12,815,580.66-19,221,202.77-3,591,430.21

Finding the Fourth Proportional to 12,815,580.66, 19,221,202.77 and 3,591,430.21

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Solution

The fourth proportional to 12,815,580.66, 19,221,202.77 and 3,591,430.21 is: 5,386,537.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,815,580.66 : 19,221,202.77 = 3,591,430.21 : x
  2. Step 2: Convert to fraction form
    12,815,580.66/19,221,202.77 = 3,591,430.21/x
  3. Step 3: Cross multiply
    12,815,580.66x = 19,221,202.77 × 3,591,430.21
  4. Step 4: Simplify right side
    12,815,580.66x = 69,031,608,311,272.32
  5. Step 5: Solve for x
    x = 69,031,608,311,272.32/12,815,580.66
  6. Step 6: Final answer
    x = 5,386,537.70

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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.