Home / 20,736,078.15-31,104,117.23-12,673,921.35

Finding the Fourth Proportional to 20,736,078.15, 31,104,117.23 and 12,673,921.35

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Solution

The fourth proportional to 20,736,078.15, 31,104,117.23 and 12,673,921.35 is: 19,010,882.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,078.15 : 31,104,117.23 = 12,673,921.35 : x
  2. Step 2: Convert to fraction form
    20,736,078.15/31,104,117.23 = 12,673,921.35/x
  3. Step 3: Cross multiply
    20,736,078.15x = 31,104,117.23 × 12,673,921.35
  4. Step 4: Simplify right side
    20,736,078.15x = 394,211,135,370,830.25
  5. Step 5: Solve for x
    x = 394,211,135,370,830.25/20,736,078.15
  6. Step 6: Final answer
    x = 19,010,882.03

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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.