Home / 746,761,874.40-1,120,142,811.60-644,641,221.60

Finding the Fourth Proportional to 746,761,874.40, 1,120,142,811.60 and 644,641,221.60

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Solution

The fourth proportional to 746,761,874.40, 1,120,142,811.60 and 644,641,221.60 is: 966,961,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,761,874.40 : 1,120,142,811.60 = 644,641,221.60 : x
  2. Step 2: Convert to fraction form
    746,761,874.40/1,120,142,811.60 = 644,641,221.60/x
  3. Step 3: Cross multiply
    746,761,874.40x = 1,120,142,811.60 × 644,641,221.60
  4. Step 4: Simplify right side
    746,761,874.40x = 722,090,230,436,282,624
  5. Step 5: Solve for x
    x = 722,090,230,436,282,624/746,761,874.40
  6. Step 6: Final answer
    x = 966,961,832.40

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1.5x scale

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.