Home / 807,422,366.20-1,211,700,419.70-347,690,471.80

Finding the Fourth Proportional to 807,422,366.20, 1,211,700,419.70 and 347,690,471.80

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Solution

The fourth proportional to 807,422,366.20, 1,211,700,419.70 and 347,690,471.80 is: 521,779,812.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,422,366.20 : 1,211,700,419.70 = 347,690,471.80 : x
  2. Step 2: Convert to fraction form
    807,422,366.20/1,211,700,419.70 = 347,690,471.80/x
  3. Step 3: Cross multiply
    807,422,366.20x = 1,211,700,419.70 × 347,690,471.80
  4. Step 4: Simplify right side
    807,422,366.20x = 421,296,690,605,751,040
  5. Step 5: Solve for x
    x = 421,296,690,605,751,040/807,422,366.20
  6. Step 6: Final answer
    x = 521,779,812.20

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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.