Home / 20,743,477.60-31,115,216.40-8,774,658.40

Finding the Fourth Proportional to 20,743,477.60, 31,115,216.40 and 8,774,658.40

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Solution

The fourth proportional to 20,743,477.60, 31,115,216.40 and 8,774,658.40 is: 13,161,987.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743,477.60 : 31,115,216.40 = 8,774,658.40 : x
  2. Step 2: Convert to fraction form
    20,743,477.60/31,115,216.40 = 8,774,658.40/x
  3. Step 3: Cross multiply
    20,743,477.60x = 31,115,216.40 × 8,774,658.40
  4. Step 4: Simplify right side
    20,743,477.60x = 273,025,394,952,077.75
  5. Step 5: Solve for x
    x = 273,025,394,952,077.75/20,743,477.60
  6. Step 6: Final answer
    x = 13,161,987.60

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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.