Home / 803,781,390.24-1,205,755,496.64-221,515,734.24

Finding the Fourth Proportional to 803,781,390.24, 1,205,755,496.64 and 221,515,734.24

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Solution

The fourth proportional to 803,781,390.24, 1,205,755,496.64 and 221,515,734.24 is: 332,296,588.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,781,390.24 : 1,205,755,496.64 = 221,515,734.24 : x
  2. Step 2: Convert to fraction form
    803,781,390.24/1,205,755,496.64 = 221,515,734.24/x
  3. Step 3: Cross multiply
    803,781,390.24x = 1,205,755,496.64 × 221,515,734.24
  4. Step 4: Simplify right side
    803,781,390.24x = 267,093,814,152,125,472
  5. Step 5: Solve for x
    x = 267,093,814,152,125,472/803,781,390.24
  6. Step 6: Final answer
    x = 332,296,588.84

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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.