Home / 443,232,000.20-664,848,000.30-419,423,443.40

Finding the Fourth Proportional to 443,232,000.20, 664,848,000.30 and 419,423,443.40

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Solution

The fourth proportional to 443,232,000.20, 664,848,000.30 and 419,423,443.40 is: 629,135,165.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,232,000.20 : 664,848,000.30 = 419,423,443.40 : x
  2. Step 2: Convert to fraction form
    443,232,000.20/664,848,000.30 = 419,423,443.40/x
  3. Step 3: Cross multiply
    443,232,000.20x = 664,848,000.30 × 419,423,443.40
  4. Step 4: Simplify right side
    443,232,000.20x = 278,852,837,623,430,208
  5. Step 5: Solve for x
    x = 278,852,837,623,430,208/443,232,000.20
  6. Step 6: Final answer
    x = 629,135,165.10

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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.