Home / 161,762,642.40-242,643,963.60-121,451,858.40

Finding the Fourth Proportional to 161,762,642.40, 242,643,963.60 and 121,451,858.40

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Solution

The fourth proportional to 161,762,642.40, 242,643,963.60 and 121,451,858.40 is: 182,177,787.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,762,642.40 : 242,643,963.60 = 121,451,858.40 : x
  2. Step 2: Convert to fraction form
    161,762,642.40/242,643,963.60 = 121,451,858.40/x
  3. Step 3: Cross multiply
    161,762,642.40x = 242,643,963.60 × 121,451,858.40
  4. Step 4: Simplify right side
    161,762,642.40x = 29,469,560,308,761,956
  5. Step 5: Solve for x
    x = 29,469,560,308,761,956/161,762,642.40
  6. Step 6: Final answer
    x = 182,177,787.60

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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.