Home / 660,077,489.10-990,116,233.65-199,955,871.30

Finding the Fourth Proportional to 660,077,489.10, 990,116,233.65 and 199,955,871.30

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Solution

The fourth proportional to 660,077,489.10, 990,116,233.65 and 199,955,871.30 is: 299,933,806.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,077,489.10 : 990,116,233.65 = 199,955,871.30 : x
  2. Step 2: Convert to fraction form
    660,077,489.10/990,116,233.65 = 199,955,871.30/x
  3. Step 3: Cross multiply
    660,077,489.10x = 990,116,233.65 × 199,955,871.30
  4. Step 4: Simplify right side
    660,077,489.10x = 197,979,554,187,760,128
  5. Step 5: Solve for x
    x = 197,979,554,187,760,128/660,077,489.10
  6. Step 6: Final answer
    x = 299,933,806.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.