Home / 449,075,221.40-673,612,832.10-219,191,778.20

Finding the Fourth Proportional to 449,075,221.40, 673,612,832.10 and 219,191,778.20

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Solution

The fourth proportional to 449,075,221.40, 673,612,832.10 and 219,191,778.20 is: 328,787,667.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,075,221.40 : 673,612,832.10 = 219,191,778.20 : x
  2. Step 2: Convert to fraction form
    449,075,221.40/673,612,832.10 = 219,191,778.20/x
  3. Step 3: Cross multiply
    449,075,221.40x = 673,612,832.10 × 219,191,778.20
  4. Step 4: Simplify right side
    449,075,221.40x = 147,650,394,486,337,024
  5. Step 5: Solve for x
    x = 147,650,394,486,337,024/449,075,221.40
  6. Step 6: Final answer
    x = 328,787,667.30

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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.