Home / 20,736,124.40-31,104,186.60-11,628,873.20

Finding the Fourth Proportional to 20,736,124.40, 31,104,186.60 and 11,628,873.20

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Solution

The fourth proportional to 20,736,124.40, 31,104,186.60 and 11,628,873.20 is: 17,443,309.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,124.40 : 31,104,186.60 = 11,628,873.20 : x
  2. Step 2: Convert to fraction form
    20,736,124.40/31,104,186.60 = 11,628,873.20/x
  3. Step 3: Cross multiply
    20,736,124.40x = 31,104,186.60 × 11,628,873.20
  4. Step 4: Simplify right side
    20,736,124.40x = 361,706,641,960,539.12
  5. Step 5: Solve for x
    x = 361,706,641,960,539.12/20,736,124.40
  6. Step 6: Final answer
    x = 17,443,309.80

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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.