Home / 148,936,308.58-205,533,965.30-81,962,972.02

Finding the Fourth Proportional to 148,936,308.58, 205,533,965.30 and 81,962,972.02

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Solution

The fourth proportional to 148,936,308.58, 205,533,965.30 and 81,962,972.02 is: 113,109,924.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,936,308.58 : 205,533,965.30 = 81,962,972.02 : x
  2. Step 2: Convert to fraction form
    148,936,308.58/205,533,965.30 = 81,962,972.02/x
  3. Step 3: Cross multiply
    148,936,308.58x = 205,533,965.30 × 81,962,972.02
  4. Step 4: Simplify right side
    148,936,308.58x = 16,846,174,646,633,734
  5. Step 5: Solve for x
    x = 16,846,174,646,633,734/148,936,308.58
  6. Step 6: Final answer
    x = 113,109,924.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.