Home / 502,136,977.47-692,901,458.15-279,092,173.92

Finding the Fourth Proportional to 502,136,977.47, 692,901,458.15 and 279,092,173.92

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Solution

The fourth proportional to 502,136,977.47, 692,901,458.15 and 279,092,173.92 is: 385,120,759.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,136,977.47 : 692,901,458.15 = 279,092,173.92 : x
  2. Step 2: Convert to fraction form
    502,136,977.47/692,901,458.15 = 279,092,173.92/x
  3. Step 3: Cross multiply
    502,136,977.47x = 692,901,458.15 × 279,092,173.92
  4. Step 4: Simplify right side
    502,136,977.47x = 193,383,374,267,421,408
  5. Step 5: Solve for x
    x = 193,383,374,267,421,408/502,136,977.47
  6. Step 6: Final answer
    x = 385,120,759.76

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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.