Home / 81,123,365.50-121,600,017.68-29,972,759.74

Finding the Fourth Proportional to 81,123,365.50, 121,600,017.68 and 29,972,759.74

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Solution

The fourth proportional to 81,123,365.50, 121,600,017.68 and 29,972,759.74 is: 44,927,723.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,123,365.50 : 121,600,017.68 = 29,972,759.74 : x
  2. Step 2: Convert to fraction form
    81,123,365.50/121,600,017.68 = 29,972,759.74/x
  3. Step 3: Cross multiply
    81,123,365.50x = 121,600,017.68 × 29,972,759.74
  4. Step 4: Simplify right side
    81,123,365.50x = 3,644,688,113,848,528.50
  5. Step 5: Solve for x
    x = 3,644,688,113,848,528.50/81,123,365.50
  6. Step 6: Final answer
    x = 44,927,723.25

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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.