Home / 664,813,049.20-997,219,573.80-611,243,796.40

Finding the Fourth Proportional to 664,813,049.20, 997,219,573.80 and 611,243,796.40

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Solution

The fourth proportional to 664,813,049.20, 997,219,573.80 and 611,243,796.40 is: 916,865,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,813,049.20 : 997,219,573.80 = 611,243,796.40 : x
  2. Step 2: Convert to fraction form
    664,813,049.20/997,219,573.80 = 611,243,796.40/x
  3. Step 3: Cross multiply
    664,813,049.20x = 997,219,573.80 × 611,243,796.40
  4. Step 4: Simplify right side
    664,813,049.20x = 609,544,278,133,901,952
  5. Step 5: Solve for x
    x = 609,544,278,133,901,952/664,813,049.20
  6. Step 6: Final answer
    x = 916,865,694.60

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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.