Home / 1,321,156,089.41-1,981,689,251.39-338,592,276.77

Finding the Fourth Proportional to 1,321,156,089.41, 1,981,689,251.39 and 338,592,276.77

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Solution

The fourth proportional to 1,321,156,089.41, 1,981,689,251.39 and 338,592,276.77 is: 507,876,912.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,156,089.41 : 1,981,689,251.39 = 338,592,276.77 : x
  2. Step 2: Convert to fraction form
    1,321,156,089.41/1,981,689,251.39 = 338,592,276.77/x
  3. Step 3: Cross multiply
    1,321,156,089.41x = 1,981,689,251.39 × 338,592,276.77
  4. Step 4: Simplify right side
    1,321,156,089.41x = 670,984,675,477,084,032
  5. Step 5: Solve for x
    x = 670,984,675,477,084,032/1,321,156,089.41
  6. Step 6: Final answer
    x = 507,876,912.39

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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.