Home / 279,527,808.96-385,765,635.19-154,079,722.36

Finding the Fourth Proportional to 279,527,808.96, 385,765,635.19 and 154,079,722.36

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Solution

The fourth proportional to 279,527,808.96, 385,765,635.19 and 154,079,722.36 is: 212,639,530.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,527,808.96 : 385,765,635.19 = 154,079,722.36 : x
  2. Step 2: Convert to fraction form
    279,527,808.96/385,765,635.19 = 154,079,722.36/x
  3. Step 3: Cross multiply
    279,527,808.96x = 385,765,635.19 × 154,079,722.36
  4. Step 4: Simplify right side
    279,527,808.96x = 59,438,661,966,489,384
  5. Step 5: Solve for x
    x = 59,438,661,966,489,384/279,527,808.96
  6. Step 6: Final answer
    x = 212,639,530.17

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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.