Home / 648,894,555.82-895,469,537.32-351,534,670.78

Finding the Fourth Proportional to 648,894,555.82, 895,469,537.32 and 351,534,670.78

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Solution

The fourth proportional to 648,894,555.82, 895,469,537.32 and 351,534,670.78 is: 485,115,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,894,555.82 : 895,469,537.32 = 351,534,670.78 : x
  2. Step 2: Convert to fraction form
    648,894,555.82/895,469,537.32 = 351,534,670.78/x
  3. Step 3: Cross multiply
    648,894,555.82x = 895,469,537.32 × 351,534,670.78
  4. Step 4: Simplify right side
    648,894,555.82x = 314,788,588,995,305,088
  5. Step 5: Solve for x
    x = 314,788,588,995,305,088/648,894,555.82
  6. Step 6: Final answer
    x = 485,115,164.20

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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.