Home / 748,978,124.80-1,123,467,187.20-658,278,860.80

Finding the Fourth Proportional to 748,978,124.80, 1,123,467,187.20 and 658,278,860.80

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Solution

The fourth proportional to 748,978,124.80, 1,123,467,187.20 and 658,278,860.80 is: 987,418,291.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,978,124.80 : 1,123,467,187.20 = 658,278,860.80 : x
  2. Step 2: Convert to fraction form
    748,978,124.80/1,123,467,187.20 = 658,278,860.80/x
  3. Step 3: Cross multiply
    748,978,124.80x = 1,123,467,187.20 × 658,278,860.80
  4. Step 4: Simplify right side
    748,978,124.80x = 739,554,700,136,196,352
  5. Step 5: Solve for x
    x = 739,554,700,136,196,352/748,978,124.80
  6. Step 6: Final answer
    x = 987,418,291.20

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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.