Home / 672,361,300.80-1,008,541,951.20-412,734,657.60

Finding the Fourth Proportional to 672,361,300.80, 1,008,541,951.20 and 412,734,657.60

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Solution

The fourth proportional to 672,361,300.80, 1,008,541,951.20 and 412,734,657.60 is: 619,101,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,361,300.80 : 1,008,541,951.20 = 412,734,657.60 : x
  2. Step 2: Convert to fraction form
    672,361,300.80/1,008,541,951.20 = 412,734,657.60/x
  3. Step 3: Cross multiply
    672,361,300.80x = 1,008,541,951.20 × 412,734,657.60
  4. Step 4: Simplify right side
    672,361,300.80x = 416,260,216,903,767,936
  5. Step 5: Solve for x
    x = 416,260,216,903,767,936/672,361,300.80
  6. Step 6: Final answer
    x = 619,101,986.40

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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.