Home / 148,936,308.04-205,533,964.55-81,962,971.48

Finding the Fourth Proportional to 148,936,308.04, 205,533,964.55 and 81,962,971.48

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Solution

The fourth proportional to 148,936,308.04, 205,533,964.55 and 81,962,971.48 is: 113,109,923.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,936,308.04 : 205,533,964.55 = 81,962,971.48 : x
  2. Step 2: Convert to fraction form
    148,936,308.04/205,533,964.55 = 81,962,971.48/x
  3. Step 3: Cross multiply
    148,936,308.04x = 205,533,964.55 × 81,962,971.48
  4. Step 4: Simplify right side
    148,936,308.04x = 16,846,174,474,274,056
  5. Step 5: Solve for x
    x = 16,846,174,474,274,056/148,936,308.04
  6. Step 6: Final answer
    x = 113,109,923.94

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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.