Home / 664,813,132.20-997,219,698.30-611,243,879.40

Finding the Fourth Proportional to 664,813,132.20, 997,219,698.30 and 611,243,879.40

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Solution

The fourth proportional to 664,813,132.20, 997,219,698.30 and 611,243,879.40 is: 916,865,819.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,813,132.20 : 997,219,698.30 = 611,243,879.40 : x
  2. Step 2: Convert to fraction form
    664,813,132.20/997,219,698.30 = 611,243,879.40/x
  3. Step 3: Cross multiply
    664,813,132.20x = 997,219,698.30 × 611,243,879.40
  4. Step 4: Simplify right side
    664,813,132.20x = 609,544,437,002,989,568
  5. Step 5: Solve for x
    x = 609,544,437,002,989,568/664,813,132.20
  6. Step 6: Final answer
    x = 916,865,819.10

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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.