Home / 210,308,340.05-315,180,522.74-163,678,129.03

Finding the Fourth Proportional to 210,308,340.05, 315,180,522.74 and 163,678,129.03

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Solution

The fourth proportional to 210,308,340.05, 315,180,522.74 and 163,678,129.03 is: 245,297,729.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,308,340.05 : 315,180,522.74 = 163,678,129.03 : x
  2. Step 2: Convert to fraction form
    210,308,340.05/315,180,522.74 = 163,678,129.03/x
  3. Step 3: Cross multiply
    210,308,340.05x = 315,180,522.74 × 163,678,129.03
  4. Step 4: Simplify right side
    210,308,340.05x = 51,588,158,268,780,568
  5. Step 5: Solve for x
    x = 51,588,158,268,780,568/210,308,340.05
  6. Step 6: Final answer
    x = 245,297,729.31

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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.