Home / 265,721,003.80-398,581,505.70-178,989,832.60

Finding the Fourth Proportional to 265,721,003.80, 398,581,505.70 and 178,989,832.60

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Solution

The fourth proportional to 265,721,003.80, 398,581,505.70 and 178,989,832.60 is: 268,484,748.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,721,003.80 : 398,581,505.70 = 178,989,832.60 : x
  2. Step 2: Convert to fraction form
    265,721,003.80/398,581,505.70 = 178,989,832.60/x
  3. Step 3: Cross multiply
    265,721,003.80x = 398,581,505.70 × 178,989,832.60
  4. Step 4: Simplify right side
    265,721,003.80x = 71,342,036,982,698,944
  5. Step 5: Solve for x
    x = 71,342,036,982,698,944/265,721,003.80
  6. Step 6: Final answer
    x = 268,484,748.90

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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.