Home / 306,665,020.20-459,770,643.90-144,917,999.40

Finding the Fourth Proportional to 306,665,020.20, 459,770,643.90 and 144,917,999.40

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Solution

The fourth proportional to 306,665,020.20, 459,770,643.90 and 144,917,999.40 is: 217,269,781.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,665,020.20 : 459,770,643.90 = 144,917,999.40 : x
  2. Step 2: Convert to fraction form
    306,665,020.20/459,770,643.90 = 144,917,999.40/x
  3. Step 3: Cross multiply
    306,665,020.20x = 459,770,643.90 × 144,917,999.40
  4. Step 4: Simplify right side
    306,665,020.20x = 66,629,041,896,837,816
  5. Step 5: Solve for x
    x = 66,629,041,896,837,816/306,665,020.20
  6. Step 6: Final answer
    x = 217,269,781.38

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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.