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Finding the Fourth Proportional to 680,809,800.80, 1,019,703,046.80 and 559,877,448.80

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Solution

The fourth proportional to 680,809,800.80, 1,019,703,046.80 and 559,877,448.80 is: 838,573,034.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,809,800.80 : 1,019,703,046.80 = 559,877,448.80 : x
  2. Step 2: Convert to fraction form
    680,809,800.80/1,019,703,046.80 = 559,877,448.80/x
  3. Step 3: Cross multiply
    680,809,800.80x = 1,019,703,046.80 × 559,877,448.80
  4. Step 4: Simplify right side
    680,809,800.80x = 570,908,740,375,970,944
  5. Step 5: Solve for x
    x = 570,908,740,375,970,944/680,809,800.80
  6. Step 6: Final answer
    x = 838,573,034.21

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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.