Home / 279,564,249.80-385,799,833.94-154,113,692.49

Finding the Fourth Proportional to 279,564,249.80, 385,799,833.94 and 154,113,692.49

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Solution

The fourth proportional to 279,564,249.80, 385,799,833.94 and 154,113,692.49 is: 212,677,540.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,564,249.80 : 385,799,833.94 = 154,113,692.49 : x
  2. Step 2: Convert to fraction form
    279,564,249.80/385,799,833.94 = 154,113,692.49/x
  3. Step 3: Cross multiply
    279,564,249.80x = 385,799,833.94 × 154,113,692.49
  4. Step 4: Simplify right side
    279,564,249.80x = 59,457,036,969,751,664
  5. Step 5: Solve for x
    x = 59,457,036,969,751,664/279,564,249.80
  6. Step 6: Final answer
    x = 212,677,540.18

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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.