Home / 519,758,557.31-717,266,809.09-299,741,983.31

Finding the Fourth Proportional to 519,758,557.31, 717,266,809.09 and 299,741,983.31

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Solution

The fourth proportional to 519,758,557.31, 717,266,809.09 and 299,741,983.31 is: 413,643,936.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,758,557.31 : 717,266,809.09 = 299,741,983.31 : x
  2. Step 2: Convert to fraction form
    519,758,557.31/717,266,809.09 = 299,741,983.31/x
  3. Step 3: Cross multiply
    519,758,557.31x = 717,266,809.09 × 299,741,983.31
  4. Step 4: Simplify right side
    519,758,557.31x = 214,994,975,921,242,560
  5. Step 5: Solve for x
    x = 214,994,975,921,242,560/519,758,557.31
  6. Step 6: Final answer
    x = 413,643,936.97

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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.