Home / 279,624,622.42-385,885,004.94-154,177,061.08

Finding the Fourth Proportional to 279,624,622.42, 385,885,004.94 and 154,177,061.08

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Solution

The fourth proportional to 279,624,622.42, 385,885,004.94 and 154,177,061.08 is: 212,766,012.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,624,622.42 : 385,885,004.94 = 154,177,061.08 : x
  2. Step 2: Convert to fraction form
    279,624,622.42/385,885,004.94 = 154,177,061.08/x
  3. Step 3: Cross multiply
    279,624,622.42x = 385,885,004.94 × 154,177,061.08
  4. Step 4: Simplify right side
    279,624,622.42x = 59,494,615,976,490,488
  5. Step 5: Solve for x
    x = 59,494,615,976,490,488/279,624,622.42
  6. Step 6: Final answer
    x = 212,766,012.74

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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.