Home / 309,459,750.41-427,056,707.22-168,332,189.34

Finding the Fourth Proportional to 309,459,750.41, 427,056,707.22 and 168,332,189.34

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Solution

The fourth proportional to 309,459,750.41, 427,056,707.22 and 168,332,189.34 is: 232,299,646.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,459,750.41 : 427,056,707.22 = 168,332,189.34 : x
  2. Step 2: Convert to fraction form
    309,459,750.41/427,056,707.22 = 168,332,189.34/x
  3. Step 3: Cross multiply
    309,459,750.41x = 427,056,707.22 × 168,332,189.34
  4. Step 4: Simplify right side
    309,459,750.41x = 71,887,390,498,673,992
  5. Step 5: Solve for x
    x = 71,887,390,498,673,992/309,459,750.41
  6. Step 6: Final answer
    x = 232,299,646.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.