Home / 81,042,287.60-121,460,212.20-33,119,087.60

Finding the Fourth Proportional to 81,042,287.60, 121,460,212.20 and 33,119,087.60

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Solution

The fourth proportional to 81,042,287.60, 121,460,212.20 and 33,119,087.60 is: 49,636,449.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,042,287.60 : 121,460,212.20 = 33,119,087.60 : x
  2. Step 2: Convert to fraction form
    81,042,287.60/121,460,212.20 = 33,119,087.60/x
  3. Step 3: Cross multiply
    81,042,287.60x = 121,460,212.20 × 33,119,087.60
  4. Step 4: Simplify right side
    81,042,287.60x = 4,022,651,407,766,389
  5. Step 5: Solve for x
    x = 4,022,651,407,766,389/81,042,287.60
  6. Step 6: Final answer
    x = 49,636,449.40

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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.