Home / 125,964,807.40-188,828,324.70-68,372,180.20

Finding the Fourth Proportional to 125,964,807.40, 188,828,324.70 and 68,372,180.20

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Solution

The fourth proportional to 125,964,807.40, 188,828,324.70 and 68,372,180.20 is: 102,493,740.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,964,807.40 : 188,828,324.70 = 68,372,180.20 : x
  2. Step 2: Convert to fraction form
    125,964,807.40/188,828,324.70 = 68,372,180.20/x
  3. Step 3: Cross multiply
    125,964,807.40x = 188,828,324.70 × 68,372,180.20
  4. Step 4: Simplify right side
    125,964,807.40x = 12,910,604,243,252,510
  5. Step 5: Solve for x
    x = 12,910,604,243,252,510/125,964,807.40
  6. Step 6: Final answer
    x = 102,493,740.19

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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.