Home / 518,856,989,519.14-778,402,840,448.34-280,086,513,611.58

Finding the Fourth Proportional to 518,856,989,519.14, 778,402,840,448.34 and 280,086,513,611.58

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Solution

The fourth proportional to 518,856,989,519.14, 778,402,840,448.34 and 280,086,513,611.58 is: 420,193,120,976.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,856,989,519.14 : 778,402,840,448.34 = 280,086,513,611.58 : x
  2. Step 2: Convert to fraction form
    518,856,989,519.14/778,402,840,448.34 = 280,086,513,611.58/x
  3. Step 3: Cross multiply
    518,856,989,519.14x = 778,402,840,448.34 × 280,086,513,611.58
  4. Step 4: Simplify right side
    518,856,989,519.14x = 218,020,137,766,526,532,976,640
  5. Step 5: Solve for x
    x = 218,020,137,766,526,532,976,640/518,856,989,519.14
  6. Step 6: Final answer
    x = 420,193,120,976.52

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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.