Home / 142,711,808.30-214,067,712.45-126,272,566.70

Finding the Fourth Proportional to 142,711,808.30, 214,067,712.45 and 126,272,566.70

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Solution

The fourth proportional to 142,711,808.30, 214,067,712.45 and 126,272,566.70 is: 189,408,850.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,711,808.30 : 214,067,712.45 = 126,272,566.70 : x
  2. Step 2: Convert to fraction form
    142,711,808.30/214,067,712.45 = 126,272,566.70/x
  3. Step 3: Cross multiply
    142,711,808.30x = 214,067,712.45 × 126,272,566.70
  4. Step 4: Simplify right side
    142,711,808.30x = 27,030,879,498,659,044
  5. Step 5: Solve for x
    x = 27,030,879,498,659,044/142,711,808.30
  6. Step 6: Final answer
    x = 189,408,850.05

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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.