Home / 81,518,283.52-122,297,400.96-66,969,802.24

Finding the Fourth Proportional to 81,518,283.52, 122,297,400.96 and 66,969,802.24

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Solution

The fourth proportional to 81,518,283.52, 122,297,400.96 and 66,969,802.24 is: 100,471,114.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,518,283.52 : 122,297,400.96 = 66,969,802.24 : x
  2. Step 2: Convert to fraction form
    81,518,283.52/122,297,400.96 = 66,969,802.24/x
  3. Step 3: Cross multiply
    81,518,283.52x = 122,297,400.96 × 66,969,802.24
  4. Step 4: Simplify right side
    81,518,283.52x = 8,190,232,756,757,186
  5. Step 5: Solve for x
    x = 8,190,232,756,757,186/81,518,283.52
  6. Step 6: Final answer
    x = 100,471,114.00

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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.