Home / 398,853,610.65-598,361,131.73-140,089,009.01

Finding the Fourth Proportional to 398,853,610.65, 598,361,131.73 and 140,089,009.01

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Solution

The fourth proportional to 398,853,610.65, 598,361,131.73 and 140,089,009.01 is: 210,161,863.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,853,610.65 : 598,361,131.73 = 140,089,009.01 : x
  2. Step 2: Convert to fraction form
    398,853,610.65/598,361,131.73 = 140,089,009.01/x
  3. Step 3: Cross multiply
    398,853,610.65x = 598,361,131.73 × 140,089,009.01
  4. Step 4: Simplify right side
    398,853,610.65x = 83,823,817,971,516,176
  5. Step 5: Solve for x
    x = 83,823,817,971,516,176/398,853,610.65
  6. Step 6: Final answer
    x = 210,161,863.23

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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.