Home / 866,601,076.08-1,195,808,592.90-485,143,999.05

Finding the Fourth Proportional to 866,601,076.08, 1,195,808,592.90 and 485,143,999.05

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Solution

The fourth proportional to 866,601,076.08, 1,195,808,592.90 and 485,143,999.05 is: 669,442,236.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,601,076.08 : 1,195,808,592.90 = 485,143,999.05 : x
  2. Step 2: Convert to fraction form
    866,601,076.08/1,195,808,592.90 = 485,143,999.05/x
  3. Step 3: Cross multiply
    866,601,076.08x = 1,195,808,592.90 × 485,143,999.05
  4. Step 4: Simplify right side
    866,601,076.08x = 580,139,362,857,859,456
  5. Step 5: Solve for x
    x = 580,139,362,857,859,456/866,601,076.08
  6. Step 6: Final answer
    x = 669,442,236.88

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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.