Home / 678,434,006.80-1,017,651,010.20-609,559,253.20

Finding the Fourth Proportional to 678,434,006.80, 1,017,651,010.20 and 609,559,253.20

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Solution

The fourth proportional to 678,434,006.80, 1,017,651,010.20 and 609,559,253.20 is: 914,338,879.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,434,006.80 : 1,017,651,010.20 = 609,559,253.20 : x
  2. Step 2: Convert to fraction form
    678,434,006.80/1,017,651,010.20 = 609,559,253.20/x
  3. Step 3: Cross multiply
    678,434,006.80x = 1,017,651,010.20 × 609,559,253.20
  4. Step 4: Simplify right side
    678,434,006.80x = 620,318,589,795,737,600
  5. Step 5: Solve for x
    x = 620,318,589,795,737,600/678,434,006.80
  6. Step 6: Final answer
    x = 914,338,879.80

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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.