Home / 666,916,901.10-999,657,906.30-252,233,488.80

Finding the Fourth Proportional to 666,916,901.10, 999,657,906.30 and 252,233,488.80

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Solution

The fourth proportional to 666,916,901.10, 999,657,906.30 and 252,233,488.80 is: 378,078,889.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,916,901.10 : 999,657,906.30 = 252,233,488.80 : x
  2. Step 2: Convert to fraction form
    666,916,901.10/999,657,906.30 = 252,233,488.80/x
  3. Step 3: Cross multiply
    666,916,901.10x = 999,657,906.30 × 252,233,488.80
  4. Step 4: Simplify right side
    666,916,901.10x = 252,147,201,312,552,512
  5. Step 5: Solve for x
    x = 252,147,201,312,552,512/666,916,901.10
  6. Step 6: Final answer
    x = 378,078,889.43

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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.