Home / 398,853,616.68-598,361,140.74-140,089,015.02

Finding the Fourth Proportional to 398,853,616.68, 598,361,140.74 and 140,089,015.02

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Solution

The fourth proportional to 398,853,616.68, 598,361,140.74 and 140,089,015.02 is: 210,161,872.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,853,616.68 : 598,361,140.74 = 140,089,015.02 : x
  2. Step 2: Convert to fraction form
    398,853,616.68/598,361,140.74 = 140,089,015.02/x
  3. Step 3: Cross multiply
    398,853,616.68x = 598,361,140.74 × 140,089,015.02
  4. Step 4: Simplify right side
    398,853,616.68x = 83,823,822,832,510,208
  5. Step 5: Solve for x
    x = 83,823,822,832,510,208/398,853,616.68
  6. Step 6: Final answer
    x = 210,161,872.24

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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.