Home / 279,624,625.92-385,885,009.77-154,177,064.58

Finding the Fourth Proportional to 279,624,625.92, 385,885,009.77 and 154,177,064.58

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Solution

The fourth proportional to 279,624,625.92, 385,885,009.77 and 154,177,064.58 is: 212,766,017.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,624,625.92 : 385,885,009.77 = 154,177,064.58 : x
  2. Step 2: Convert to fraction form
    279,624,625.92/385,885,009.77 = 154,177,064.58/x
  3. Step 3: Cross multiply
    279,624,625.92x = 385,885,009.77 × 154,177,064.58
  4. Step 4: Simplify right side
    279,624,625.92x = 59,494,618,071,763,224
  5. Step 5: Solve for x
    x = 59,494,618,071,763,224/279,624,625.92
  6. Step 6: Final answer
    x = 212,766,017.57

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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.