Home / 640,571,094,639.36-883,929,682,046.40-380,103,914,905.92

Finding the Fourth Proportional to 640,571,094,639.36, 883,929,682,046.40 and 380,103,914,905.92

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Solution

The fourth proportional to 640,571,094,639.36, 883,929,682,046.40 and 380,103,914,905.92 is: 524,508,732,065.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,571,094,639.36 : 883,929,682,046.40 = 380,103,914,905.92 : x
  2. Step 2: Convert to fraction form
    640,571,094,639.36/883,929,682,046.40 = 380,103,914,905.92/x
  3. Step 3: Cross multiply
    640,571,094,639.36x = 883,929,682,046.40 × 380,103,914,905.92
  4. Step 4: Simplify right side
    640,571,094,639.36x = 335,985,132,647,381,737,668,608
  5. Step 5: Solve for x
    x = 335,985,132,647,381,737,668,608/640,571,094,639.36
  6. Step 6: Final answer
    x = 524,508,732,065.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.