Home / 205,240,966.64-307,875,819-82,419,279.92

Finding the Fourth Proportional to 205,240,966.64, 307,875,819 and 82,419,279.92

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Solution

The fourth proportional to 205,240,966.64, 307,875,819 and 82,419,279.92 is: 123,634,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,240,966.64 : 307,875,819 = 82,419,279.92 : x
  2. Step 2: Convert to fraction form
    205,240,966.64/307,875,819 = 82,419,279.92/x
  3. Step 3: Cross multiply
    205,240,966.64x = 307,875,819 × 82,419,279.92
  4. Step 4: Simplify right side
    205,240,966.64x = 25,374,903,306,760,256
  5. Step 5: Solve for x
    x = 25,374,903,306,760,256/205,240,966.64
  6. Step 6: Final answer
    x = 123,634,690.10

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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.