Home / 20,736,012.90-31,104,019.37-12,673,856.10

Finding the Fourth Proportional to 20,736,012.90, 31,104,019.37 and 12,673,856.10

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Solution

The fourth proportional to 20,736,012.90, 31,104,019.37 and 12,673,856.10 is: 19,010,784.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,012.90 : 31,104,019.37 = 12,673,856.10 : x
  2. Step 2: Convert to fraction form
    20,736,012.90/31,104,019.37 = 12,673,856.10/x
  3. Step 3: Cross multiply
    20,736,012.90x = 31,104,019.37 × 12,673,856.10
  4. Step 4: Simplify right side
    20,736,012.90x = 394,207,865,563,623.38
  5. Step 5: Solve for x
    x = 394,207,865,563,623.38/20,736,012.90
  6. Step 6: Final answer
    x = 19,010,784.16

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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.