Home / 171,221,495.10-256,832,419.05-80,345,171.58

Finding the Fourth Proportional to 171,221,495.10, 256,832,419.05 and 80,345,171.58

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Solution

The fourth proportional to 171,221,495.10, 256,832,419.05 and 80,345,171.58 is: 120,517,840.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,221,495.10 : 256,832,419.05 = 80,345,171.58 : x
  2. Step 2: Convert to fraction form
    171,221,495.10/256,832,419.05 = 80,345,171.58/x
  3. Step 3: Cross multiply
    171,221,495.10x = 256,832,419.05 × 80,345,171.58
  4. Step 4: Simplify right side
    171,221,495.10x = 20,635,244,775,878,712
  5. Step 5: Solve for x
    x = 20,635,244,775,878,712/171,221,495.10
  6. Step 6: Final answer
    x = 120,517,840.15

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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.