Home / 380,320,052.09-525,333,998.87-314,506,398.65

Finding the Fourth Proportional to 380,320,052.09, 525,333,998.87 and 314,506,398.65

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Solution

The fourth proportional to 380,320,052.09, 525,333,998.87 and 314,506,398.65 is: 434,425,960.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,320,052.09 : 525,333,998.87 = 314,506,398.65 : x
  2. Step 2: Convert to fraction form
    380,320,052.09/525,333,998.87 = 314,506,398.65/x
  3. Step 3: Cross multiply
    380,320,052.09x = 525,333,998.87 × 314,506,398.65
  4. Step 4: Simplify right side
    380,320,052.09x = 165,220,904,071,751,456
  5. Step 5: Solve for x
    x = 165,220,904,071,751,456/380,320,052.09
  6. Step 6: Final answer
    x = 434,425,960.89

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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.