Home / 769,836,622.80-1,152,487,452.60-724,990,875.60

Finding the Fourth Proportional to 769,836,622.80, 1,152,487,452.60 and 724,990,875.60

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Solution

The fourth proportional to 769,836,622.80, 1,152,487,452.60 and 724,990,875.60 is: 1,085,350,920.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,836,622.80 : 1,152,487,452.60 = 724,990,875.60 : x
  2. Step 2: Convert to fraction form
    769,836,622.80/1,152,487,452.60 = 724,990,875.60/x
  3. Step 3: Cross multiply
    769,836,622.80x = 1,152,487,452.60 × 724,990,875.60
  4. Step 4: Simplify right side
    769,836,622.80x = 835,542,887,378,487,424
  5. Step 5: Solve for x
    x = 835,542,887,378,487,424/769,836,622.80
  6. Step 6: Final answer
    x = 1,085,350,920.74

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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.