Home / 125,964,814.40-188,828,335.20-68,372,187.20

Finding the Fourth Proportional to 125,964,814.40, 188,828,335.20 and 68,372,187.20

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Solution

The fourth proportional to 125,964,814.40, 188,828,335.20 and 68,372,187.20 is: 102,493,750.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,964,814.40 : 188,828,335.20 = 68,372,187.20 : x
  2. Step 2: Convert to fraction form
    125,964,814.40/188,828,335.20 = 68,372,187.20/x
  3. Step 3: Cross multiply
    125,964,814.40x = 188,828,335.20 × 68,372,187.20
  4. Step 4: Simplify right side
    125,964,814.40x = 12,910,606,282,958,750
  5. Step 5: Solve for x
    x = 12,910,606,282,958,750/125,964,814.40
  6. Step 6: Final answer
    x = 102,493,750.69

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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.