Home / 766,446,899.10-1,149,653,749.32-213,734,579.42

Finding the Fourth Proportional to 766,446,899.10, 1,149,653,749.32 and 213,734,579.42

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Solution

The fourth proportional to 766,446,899.10, 1,149,653,749.32 and 213,734,579.42 is: 320,597,240.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,446,899.10 : 1,149,653,749.32 = 213,734,579.42 : x
  2. Step 2: Convert to fraction form
    766,446,899.10/1,149,653,749.32 = 213,734,579.42/x
  3. Step 3: Cross multiply
    766,446,899.10x = 1,149,653,749.32 × 213,734,579.42
  4. Step 4: Simplify right side
    766,446,899.10x = 245,720,760,589,536,288
  5. Step 5: Solve for x
    x = 245,720,760,589,536,288/766,446,899.10
  6. Step 6: Final answer
    x = 320,597,240.17

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1.5x scale

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.