Home / 81,602,378.48-122,403,436.50-55,965,664.64

Finding the Fourth Proportional to 81,602,378.48, 122,403,436.50 and 55,965,664.64

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Solution

The fourth proportional to 81,602,378.48, 122,403,436.50 and 55,965,664.64 is: 83,948,406.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,602,378.48 : 122,403,436.50 = 55,965,664.64 : x
  2. Step 2: Convert to fraction form
    81,602,378.48/122,403,436.50 = 55,965,664.64/x
  3. Step 3: Cross multiply
    81,602,378.48x = 122,403,436.50 × 55,965,664.64
  4. Step 4: Simplify right side
    81,602,378.48x = 6,850,389,677,942,535
  5. Step 5: Solve for x
    x = 6,850,389,677,942,535/81,602,378.48
  6. Step 6: Final answer
    x = 83,948,406.96

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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.