Home / 306,665,019.20-459,770,642.40-144,917,998.40

Finding the Fourth Proportional to 306,665,019.20, 459,770,642.40 and 144,917,998.40

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Solution

The fourth proportional to 306,665,019.20, 459,770,642.40 and 144,917,998.40 is: 217,269,779.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,665,019.20 : 459,770,642.40 = 144,917,998.40 : x
  2. Step 2: Convert to fraction form
    306,665,019.20/459,770,642.40 = 144,917,998.40/x
  3. Step 3: Cross multiply
    306,665,019.20x = 459,770,642.40 × 144,917,998.40
  4. Step 4: Simplify right side
    306,665,019.20x = 66,629,041,219,690,168
  5. Step 5: Solve for x
    x = 66,629,041,219,690,168/306,665,019.20
  6. Step 6: Final answer
    x = 217,269,779.88

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1.5x scale

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.