Home / 782,330,692.80-1,173,496,039.20-472,394,301.60

Finding the Fourth Proportional to 782,330,692.80, 1,173,496,039.20 and 472,394,301.60

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Solution

The fourth proportional to 782,330,692.80, 1,173,496,039.20 and 472,394,301.60 is: 708,591,452.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,330,692.80 : 1,173,496,039.20 = 472,394,301.60 : x
  2. Step 2: Convert to fraction form
    782,330,692.80/1,173,496,039.20 = 472,394,301.60/x
  3. Step 3: Cross multiply
    782,330,692.80x = 1,173,496,039.20 × 472,394,301.60
  4. Step 4: Simplify right side
    782,330,692.80x = 554,352,841,868,250,304
  5. Step 5: Solve for x
    x = 554,352,841,868,250,304/782,330,692.80
  6. Step 6: Final answer
    x = 708,591,452.40

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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.