Home / 5,131,579,817.38-7,081,580,208.45-2,784,736,361.38

Finding the Fourth Proportional to 5,131,579,817.38, 7,081,580,208.45 and 2,784,736,361.38

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Solution

The fourth proportional to 5,131,579,817.38, 7,081,580,208.45 and 2,784,736,361.38 is: 3,842,936,211.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131,579,817.38 : 7,081,580,208.45 = 2,784,736,361.38 : x
  2. Step 2: Convert to fraction form
    5,131,579,817.38/7,081,580,208.45 = 2,784,736,361.38/x
  3. Step 3: Cross multiply
    5,131,579,817.38x = 7,081,580,208.45 × 2,784,736,361.38
  4. Step 4: Simplify right side
    5,131,579,817.38x = 19,720,333,902,499,676,160
  5. Step 5: Solve for x
    x = 19,720,333,902,499,676,160/5,131,579,817.38
  6. Step 6: Final answer
    x = 3,842,936,211.52

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.