Home / 515,959,229.30-774,271,807.38-188,407,317.74

Finding the Fourth Proportional to 515,959,229.30, 774,271,807.38 and 188,407,317.74

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Solution

The fourth proportional to 515,959,229.30, 774,271,807.38 and 188,407,317.74 is: 282,732,561.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,959,229.30 : 774,271,807.38 = 188,407,317.74 : x
  2. Step 2: Convert to fraction form
    515,959,229.30/774,271,807.38 = 188,407,317.74/x
  3. Step 3: Cross multiply
    515,959,229.30x = 774,271,807.38 × 188,407,317.74
  4. Step 4: Simplify right side
    515,959,229.30x = 145,878,474,430,167,744
  5. Step 5: Solve for x
    x = 145,878,474,430,167,744/515,959,229.30
  6. Step 6: Final answer
    x = 282,732,561.31

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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.