Home / 664,848,015.40-997,272,023.10-447,169,781.80

Finding the Fourth Proportional to 664,848,015.40, 997,272,023.10 and 447,169,781.80

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Solution

The fourth proportional to 664,848,015.40, 997,272,023.10 and 447,169,781.80 is: 670,754,672.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,848,015.40 : 997,272,023.10 = 447,169,781.80 : x
  2. Step 2: Convert to fraction form
    664,848,015.40/997,272,023.10 = 447,169,781.80/x
  3. Step 3: Cross multiply
    664,848,015.40x = 997,272,023.10 × 447,169,781.80
  4. Step 4: Simplify right side
    664,848,015.40x = 445,949,912,964,871,552
  5. Step 5: Solve for x
    x = 445,949,912,964,871,552/664,848,015.40
  6. Step 6: Final answer
    x = 670,754,672.70

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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.