Home / 142,847,999.70-214,271,999.55-74,711,577.30

Finding the Fourth Proportional to 142,847,999.70, 214,271,999.55 and 74,711,577.30

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Solution

The fourth proportional to 142,847,999.70, 214,271,999.55 and 74,711,577.30 is: 112,067,365.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,847,999.70 : 214,271,999.55 = 74,711,577.30 : x
  2. Step 2: Convert to fraction form
    142,847,999.70/214,271,999.55 = 74,711,577.30/x
  3. Step 3: Cross multiply
    142,847,999.70x = 214,271,999.55 × 74,711,577.30
  4. Step 4: Simplify right side
    142,847,999.70x = 16,008,599,057,605,390
  5. Step 5: Solve for x
    x = 16,008,599,057,605,390/142,847,999.70
  6. Step 6: Final answer
    x = 112,067,365.95

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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.