Home / 728,161,772.40-1,092,384,376.20-210,609,097.20

Finding the Fourth Proportional to 728,161,772.40, 1,092,384,376.20 and 210,609,097.20

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Solution

The fourth proportional to 728,161,772.40, 1,092,384,376.20 and 210,609,097.20 is: 315,954,635.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,161,772.40 : 1,092,384,376.20 = 210,609,097.20 : x
  2. Step 2: Convert to fraction form
    728,161,772.40/1,092,384,376.20 = 210,609,097.20/x
  3. Step 3: Cross multiply
    728,161,772.40x = 1,092,384,376.20 × 210,609,097.20
  4. Step 4: Simplify right side
    728,161,772.40x = 230,066,087,266,867,168
  5. Step 5: Solve for x
    x = 230,066,087,266,867,168/728,161,772.40
  6. Step 6: Final answer
    x = 315,954,635.34

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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.