Home / 81,309,968.70-122,006,287.35-54,035,235.60

Finding the Fourth Proportional to 81,309,968.70, 122,006,287.35 and 54,035,235.60

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Solution

The fourth proportional to 81,309,968.70, 122,006,287.35 and 54,035,235.60 is: 81,080,322.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,309,968.70 : 122,006,287.35 = 54,035,235.60 : x
  2. Step 2: Convert to fraction form
    81,309,968.70/122,006,287.35 = 54,035,235.60/x
  3. Step 3: Cross multiply
    81,309,968.70x = 122,006,287.35 × 54,035,235.60
  4. Step 4: Simplify right side
    81,309,968.70x = 6,592,638,481,638,550
  5. Step 5: Solve for x
    x = 6,592,638,481,638,550/81,309,968.70
  6. Step 6: Final answer
    x = 81,080,322.46

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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.