Home / 517,893,801.57-714,693,732.87-279,738,984.78

Finding the Fourth Proportional to 517,893,801.57, 714,693,732.87 and 279,738,984.78

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Solution

The fourth proportional to 517,893,801.57, 714,693,732.87 and 279,738,984.78 is: 386,039,953.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,893,801.57 : 714,693,732.87 = 279,738,984.78 : x
  2. Step 2: Convert to fraction form
    517,893,801.57/714,693,732.87 = 279,738,984.78/x
  3. Step 3: Cross multiply
    517,893,801.57x = 714,693,732.87 × 279,738,984.78
  4. Step 4: Simplify right side
    517,893,801.57x = 199,927,699,261,682,304
  5. Step 5: Solve for x
    x = 199,927,699,261,682,304/517,893,801.57
  6. Step 6: Final answer
    x = 386,039,953.86

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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.