Home / 251,296,977.60-376,980,895.80-78,755,799.60

Finding the Fourth Proportional to 251,296,977.60, 376,980,895.80 and 78,755,799.60

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Solution

The fourth proportional to 251,296,977.60, 376,980,895.80 and 78,755,799.60 is: 118,144,802.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,296,977.60 : 376,980,895.80 = 78,755,799.60 : x
  2. Step 2: Convert to fraction form
    251,296,977.60/376,980,895.80 = 78,755,799.60/x
  3. Step 3: Cross multiply
    251,296,977.60x = 376,980,895.80 × 78,755,799.60
  4. Step 4: Simplify right side
    251,296,977.60x = 29,689,431,882,653,280
  5. Step 5: Solve for x
    x = 29,689,431,882,653,280/251,296,977.60
  6. Step 6: Final answer
    x = 118,144,802.88

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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.