Home / 80,728,356.33-121,139,531.76-34,038,913.46

Finding the Fourth Proportional to 80,728,356.33, 121,139,531.76 and 34,038,913.46

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Solution

The fourth proportional to 80,728,356.33, 121,139,531.76 and 34,038,913.46 is: 51,078,186.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,728,356.33 : 121,139,531.76 = 34,038,913.46 : x
  2. Step 2: Convert to fraction form
    80,728,356.33/121,139,531.76 = 34,038,913.46/x
  3. Step 3: Cross multiply
    80,728,356.33x = 121,139,531.76 × 34,038,913.46
  4. Step 4: Simplify right side
    80,728,356.33x = 4,123,458,037,557,864
  5. Step 5: Solve for x
    x = 4,123,458,037,557,864/80,728,356.33
  6. Step 6: Final answer
    x = 51,078,186.46

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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.