Home / 648,894,554.82-895,469,535.95-351,534,669.78

Finding the Fourth Proportional to 648,894,554.82, 895,469,535.95 and 351,534,669.78

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Solution

The fourth proportional to 648,894,554.82, 895,469,535.95 and 351,534,669.78 is: 485,115,162.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,894,554.82 : 895,469,535.95 = 351,534,669.78 : x
  2. Step 2: Convert to fraction form
    648,894,554.82/895,469,535.95 = 351,534,669.78/x
  3. Step 3: Cross multiply
    648,894,554.82x = 895,469,535.95 × 351,534,669.78
  4. Step 4: Simplify right side
    648,894,554.82x = 314,788,587,611,998,080
  5. Step 5: Solve for x
    x = 314,788,587,611,998,080/648,894,554.82
  6. Step 6: Final answer
    x = 485,115,162.82

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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.