Home / 727,466,946.21-1,003,904,789.09-392,939,467.34

Finding the Fourth Proportional to 727,466,946.21, 1,003,904,789.09 and 392,939,467.34

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Solution

The fourth proportional to 727,466,946.21, 1,003,904,789.09 and 392,939,467.34 is: 542,256,682.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,466,946.21 : 1,003,904,789.09 = 392,939,467.34 : x
  2. Step 2: Convert to fraction form
    727,466,946.21/1,003,904,789.09 = 392,939,467.34/x
  3. Step 3: Cross multiply
    727,466,946.21x = 1,003,904,789.09 × 392,939,467.34
  4. Step 4: Simplify right side
    727,466,946.21x = 394,473,813,078,115,392
  5. Step 5: Solve for x
    x = 394,473,813,078,115,392/727,466,946.21
  6. Step 6: Final answer
    x = 542,256,682.77

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1.5x scale

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.