Home / 80,967,663.36-121,437,964.80-35,517,254.40

Finding the Fourth Proportional to 80,967,663.36, 121,437,964.80 and 35,517,254.40

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Solution

The fourth proportional to 80,967,663.36, 121,437,964.80 and 35,517,254.40 is: 53,269,946.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,967,663.36 : 121,437,964.80 = 35,517,254.40 : x
  2. Step 2: Convert to fraction form
    80,967,663.36/121,437,964.80 = 35,517,254.40/x
  3. Step 3: Cross multiply
    80,967,663.36x = 121,437,964.80 × 35,517,254.40
  4. Step 4: Simplify right side
    80,967,663.36x = 4,313,143,089,619,845
  5. Step 5: Solve for x
    x = 4,313,143,089,619,845/80,967,663.36
  6. Step 6: Final answer
    x = 53,269,946.43

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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.