Home / 217,320,628.10-325,996,688.55-130,872,892.10

Finding the Fourth Proportional to 217,320,628.10, 325,996,688.55 and 130,872,892.10

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Solution

The fourth proportional to 217,320,628.10, 325,996,688.55 and 130,872,892.10 is: 196,318,820.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,320,628.10 : 325,996,688.55 = 130,872,892.10 : x
  2. Step 2: Convert to fraction form
    217,320,628.10/325,996,688.55 = 130,872,892.10/x
  3. Step 3: Cross multiply
    217,320,628.10x = 325,996,688.55 × 130,872,892.10
  4. Step 4: Simplify right side
    217,320,628.10x = 42,664,129,445,561,456
  5. Step 5: Solve for x
    x = 42,664,129,445,561,456/217,320,628.10
  6. Step 6: Final answer
    x = 196,318,820.81

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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.