Home / 660,185,016.30-990,277,524.45-427,732,722.90

Finding the Fourth Proportional to 660,185,016.30, 990,277,524.45 and 427,732,722.90

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Solution

The fourth proportional to 660,185,016.30, 990,277,524.45 and 427,732,722.90 is: 641,599,084.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,185,016.30 : 990,277,524.45 = 427,732,722.90 : x
  2. Step 2: Convert to fraction form
    660,185,016.30/990,277,524.45 = 427,732,722.90/x
  3. Step 3: Cross multiply
    660,185,016.30x = 990,277,524.45 × 427,732,722.90
  4. Step 4: Simplify right side
    660,185,016.30x = 423,574,101,959,669,824
  5. Step 5: Solve for x
    x = 423,574,101,959,669,824/660,185,016.30
  6. Step 6: Final answer
    x = 641,599,084.35

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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.