Home / 690,794,207.10-1,035,896,360.91-399,862,146.06

Finding the Fourth Proportional to 690,794,207.10, 1,035,896,360.91 and 399,862,146.06

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Solution

The fourth proportional to 690,794,207.10, 1,035,896,360.91 and 399,862,146.06 is: 599,622,489.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,794,207.10 : 1,035,896,360.91 = 399,862,146.06 : x
  2. Step 2: Convert to fraction form
    690,794,207.10/1,035,896,360.91 = 399,862,146.06/x
  3. Step 3: Cross multiply
    690,794,207.10x = 1,035,896,360.91 × 399,862,146.06
  4. Step 4: Simplify right side
    690,794,207.10x = 414,215,741,969,216,896
  5. Step 5: Solve for x
    x = 414,215,741,969,216,896/690,794,207.10
  6. Step 6: Final answer
    x = 599,622,489.18

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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.