Home / 485,702,695.36-728,605,073.04-158,203,731.88

Finding the Fourth Proportional to 485,702,695.36, 728,605,073.04 and 158,203,731.88

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Solution

The fourth proportional to 485,702,695.36, 728,605,073.04 and 158,203,731.88 is: 237,322,219.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,702,695.36 : 728,605,073.04 = 158,203,731.88 : x
  2. Step 2: Convert to fraction form
    485,702,695.36/728,605,073.04 = 158,203,731.88/x
  3. Step 3: Cross multiply
    485,702,695.36x = 728,605,073.04 × 158,203,731.88
  4. Step 4: Simplify right side
    485,702,695.36x = 115,268,041,621,627,968
  5. Step 5: Solve for x
    x = 115,268,041,621,627,968/485,702,695.36
  6. Step 6: Final answer
    x = 237,322,219.38

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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.