Home / 442,649,674.80-663,974,512.20-429,895,090.80

Finding the Fourth Proportional to 442,649,674.80, 663,974,512.20 and 429,895,090.80

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Solution

The fourth proportional to 442,649,674.80, 663,974,512.20 and 429,895,090.80 is: 644,842,636.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,649,674.80 : 663,974,512.20 = 429,895,090.80 : x
  2. Step 2: Convert to fraction form
    442,649,674.80/663,974,512.20 = 429,895,090.80/x
  3. Step 3: Cross multiply
    442,649,674.80x = 663,974,512.20 × 429,895,090.80
  4. Step 4: Simplify right side
    442,649,674.80x = 285,439,383,211,104,736
  5. Step 5: Solve for x
    x = 285,439,383,211,104,736/442,649,674.80
  6. Step 6: Final answer
    x = 644,842,636.20

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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.