Home / 387,873,610.56-535,276,960.20-211,672,983.96

Finding the Fourth Proportional to 387,873,610.56, 535,276,960.20 and 211,672,983.96

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Solution

The fourth proportional to 387,873,610.56, 535,276,960.20 and 211,672,983.96 is: 292,114,926.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,873,610.56 : 535,276,960.20 = 211,672,983.96 : x
  2. Step 2: Convert to fraction form
    387,873,610.56/535,276,960.20 = 211,672,983.96/x
  3. Step 3: Cross multiply
    387,873,610.56x = 535,276,960.20 × 211,672,983.96
  4. Step 4: Simplify right side
    387,873,610.56x = 113,303,671,410,572,160
  5. Step 5: Solve for x
    x = 113,303,671,410,572,160/387,873,610.56
  6. Step 6: Final answer
    x = 292,114,926.94

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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.