Home / 279,624,628.17-385,885,012.88-154,177,066.83

Finding the Fourth Proportional to 279,624,628.17, 385,885,012.88 and 154,177,066.83

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Solution

The fourth proportional to 279,624,628.17, 385,885,012.88 and 154,177,066.83 is: 212,766,020.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,624,628.17 : 385,885,012.88 = 154,177,066.83 : x
  2. Step 2: Convert to fraction form
    279,624,628.17/385,885,012.88 = 154,177,066.83/x
  3. Step 3: Cross multiply
    279,624,628.17x = 385,885,012.88 × 154,177,066.83
  4. Step 4: Simplify right side
    279,624,628.17x = 59,494,619,418,724,288
  5. Step 5: Solve for x
    x = 59,494,619,418,724,288/279,624,628.17
  6. Step 6: Final answer
    x = 212,766,020.68

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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.