Home / 791,653,123.20-1,187,942,745.60-331,552,646.40

Finding the Fourth Proportional to 791,653,123.20, 1,187,942,745.60 and 331,552,646.40

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Solution

The fourth proportional to 791,653,123.20, 1,187,942,745.60 and 331,552,646.40 is: 497,522,904.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,653,123.20 : 1,187,942,745.60 = 331,552,646.40 : x
  2. Step 2: Convert to fraction form
    791,653,123.20/1,187,942,745.60 = 331,552,646.40/x
  3. Step 3: Cross multiply
    791,653,123.20x = 1,187,942,745.60 × 331,552,646.40
  4. Step 4: Simplify right side
    791,653,123.20x = 393,865,561,075,361,920
  5. Step 5: Solve for x
    x = 393,865,561,075,361,920/791,653,123.20
  6. Step 6: Final answer
    x = 497,522,904.33

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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.