Home / 640,414,837.73-960,643,520.61-220,232,087.27

Finding the Fourth Proportional to 640,414,837.73, 960,643,520.61 and 220,232,087.27

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Solution

The fourth proportional to 640,414,837.73, 960,643,520.61 and 220,232,087.27 is: 330,355,443.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,414,837.73 : 960,643,520.61 = 220,232,087.27 : x
  2. Step 2: Convert to fraction form
    640,414,837.73/960,643,520.61 = 220,232,087.27/x
  3. Step 3: Cross multiply
    640,414,837.73x = 960,643,520.61 × 220,232,087.27
  4. Step 4: Simplify right side
    640,414,837.73x = 211,564,527,662,364,192
  5. Step 5: Solve for x
    x = 211,564,527,662,364,192/640,414,837.73
  6. Step 6: Final answer
    x = 330,355,443.38

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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.