Home / 921,235,472.80-1,381,853,209.20-299,449,502.80

Finding the Fourth Proportional to 921,235,472.80, 1,381,853,209.20 and 299,449,502.80

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Solution

The fourth proportional to 921,235,472.80, 1,381,853,209.20 and 299,449,502.80 is: 449,174,254.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,235,472.80 : 1,381,853,209.20 = 299,449,502.80 : x
  2. Step 2: Convert to fraction form
    921,235,472.80/1,381,853,209.20 = 299,449,502.80/x
  3. Step 3: Cross multiply
    921,235,472.80x = 1,381,853,209.20 × 299,449,502.80
  4. Step 4: Simplify right side
    921,235,472.80x = 413,795,256,437,524,416
  5. Step 5: Solve for x
    x = 413,795,256,437,524,416/921,235,472.80
  6. Step 6: Final answer
    x = 449,174,254.20

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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.