Home / 20,736,056.80-31,104,085.20-13,196,447.20

Finding the Fourth Proportional to 20,736,056.80, 31,104,085.20 and 13,196,447.20

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Solution

The fourth proportional to 20,736,056.80, 31,104,085.20 and 13,196,447.20 is: 19,794,670.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,056.80 : 31,104,085.20 = 13,196,447.20 : x
  2. Step 2: Convert to fraction form
    20,736,056.80/31,104,085.20 = 13,196,447.20/x
  3. Step 3: Cross multiply
    20,736,056.80x = 31,104,085.20 × 13,196,447.20
  4. Step 4: Simplify right side
    20,736,056.80x = 410,463,418,046,101.44
  5. Step 5: Solve for x
    x = 410,463,418,046,101.44/20,736,056.80
  6. Step 6: Final answer
    x = 19,794,670.80

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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.