Home / 664,852,492.20-997,278,738.30-389,353,477.80

Finding the Fourth Proportional to 664,852,492.20, 997,278,738.30 and 389,353,477.80

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Solution

The fourth proportional to 664,852,492.20, 997,278,738.30 and 389,353,477.80 is: 584,030,216.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,852,492.20 : 997,278,738.30 = 389,353,477.80 : x
  2. Step 2: Convert to fraction form
    664,852,492.20/997,278,738.30 = 389,353,477.80/x
  3. Step 3: Cross multiply
    664,852,492.20x = 997,278,738.30 × 389,353,477.80
  4. Step 4: Simplify right side
    664,852,492.20x = 388,293,945,093,101,056
  5. Step 5: Solve for x
    x = 388,293,945,093,101,056/664,852,492.20
  6. Step 6: Final answer
    x = 584,030,216.70

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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.