Home / 613,781,197.56-921,253,855.98-379,904,453.72

Finding the Fourth Proportional to 613,781,197.56, 921,253,855.98 and 379,904,453.72

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Solution

The fourth proportional to 613,781,197.56, 921,253,855.98 and 379,904,453.72 is: 570,216,950.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,781,197.56 : 921,253,855.98 = 379,904,453.72 : x
  2. Step 2: Convert to fraction form
    613,781,197.56/921,253,855.98 = 379,904,453.72/x
  3. Step 3: Cross multiply
    613,781,197.56x = 921,253,855.98 × 379,904,453.72
  4. Step 4: Simplify right side
    613,781,197.56x = 349,988,442,893,525,504
  5. Step 5: Solve for x
    x = 349,988,442,893,525,504/613,781,197.56
  6. Step 6: Final answer
    x = 570,216,950.74

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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.