Home / 82,721,012.55-124,081,518.83-25,213,191.45

Finding the Fourth Proportional to 82,721,012.55, 124,081,518.83 and 25,213,191.45

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Solution

The fourth proportional to 82,721,012.55, 124,081,518.83 and 25,213,191.45 is: 37,819,787.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,721,012.55 : 124,081,518.83 = 25,213,191.45 : x
  2. Step 2: Convert to fraction form
    82,721,012.55/124,081,518.83 = 25,213,191.45/x
  3. Step 3: Cross multiply
    82,721,012.55x = 124,081,518.83 × 25,213,191.45
  4. Step 4: Simplify right side
    82,721,012.55x = 3,128,491,089,541,504
  5. Step 5: Solve for x
    x = 3,128,491,089,541,504/82,721,012.55
  6. Step 6: Final answer
    x = 37,819,787.18

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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.