Home / 310,765,358.92-428,856,237.30-171,536,146.96

Finding the Fourth Proportional to 310,765,358.92, 428,856,237.30 and 171,536,146.96

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Solution

The fourth proportional to 310,765,358.92, 428,856,237.30 and 171,536,146.96 is: 236,719,905.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,765,358.92 : 428,856,237.30 = 171,536,146.96 : x
  2. Step 2: Convert to fraction form
    310,765,358.92/428,856,237.30 = 171,536,146.96/x
  3. Step 3: Cross multiply
    310,765,358.92x = 428,856,237.30 × 171,536,146.96
  4. Step 4: Simplify right side
    310,765,358.92x = 73,564,346,546,205,440
  5. Step 5: Solve for x
    x = 73,564,346,546,205,440/310,765,358.92
  6. Step 6: Final answer
    x = 236,719,905.98

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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.