Home / 515,959,229.29-774,271,807.40-188,407,317.73

Finding the Fourth Proportional to 515,959,229.29, 774,271,807.40 and 188,407,317.73

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Solution

The fourth proportional to 515,959,229.29, 774,271,807.40 and 188,407,317.73 is: 282,732,561.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,959,229.29 : 774,271,807.40 = 188,407,317.73 : x
  2. Step 2: Convert to fraction form
    515,959,229.29/774,271,807.40 = 188,407,317.73/x
  3. Step 3: Cross multiply
    515,959,229.29x = 774,271,807.40 × 188,407,317.73
  4. Step 4: Simplify right side
    515,959,229.29x = 145,878,474,426,193,152
  5. Step 5: Solve for x
    x = 145,878,474,426,193,152/515,959,229.29
  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.