Home / 664,848,000.20-997,272,000.30-419,959,987.40

Finding the Fourth Proportional to 664,848,000.20, 997,272,000.30 and 419,959,987.40

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Solution

The fourth proportional to 664,848,000.20, 997,272,000.30 and 419,959,987.40 is: 629,939,981.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,848,000.20 : 997,272,000.30 = 419,959,987.40 : x
  2. Step 2: Convert to fraction form
    664,848,000.20/997,272,000.30 = 419,959,987.40/x
  3. Step 3: Cross multiply
    664,848,000.20x = 997,272,000.30 × 419,959,987.40
  4. Step 4: Simplify right side
    664,848,000.20x = 418,814,336,680,360,768
  5. Step 5: Solve for x
    x = 418,814,336,680,360,768/664,848,000.20
  6. Step 6: Final answer
    x = 629,939,981.10

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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.