Home / 684,288,003.80-1,026,432,005.70-664,132,611.80

Finding the Fourth Proportional to 684,288,003.80, 1,026,432,005.70 and 664,132,611.80

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Solution

The fourth proportional to 684,288,003.80, 1,026,432,005.70 and 664,132,611.80 is: 996,198,917.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,288,003.80 : 1,026,432,005.70 = 664,132,611.80 : x
  2. Step 2: Convert to fraction form
    684,288,003.80/1,026,432,005.70 = 664,132,611.80/x
  3. Step 3: Cross multiply
    684,288,003.80x = 1,026,432,005.70 × 664,132,611.80
  4. Step 4: Simplify right side
    684,288,003.80x = 681,686,968,780,653,440
  5. Step 5: Solve for x
    x = 681,686,968,780,653,440/684,288,003.80
  6. Step 6: Final answer
    x = 996,198,917.70

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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.