Home / 210,276,243.80-315,414,365.70-137,716,832.60

Finding the Fourth Proportional to 210,276,243.80, 315,414,365.70 and 137,716,832.60

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Solution

The fourth proportional to 210,276,243.80, 315,414,365.70 and 137,716,832.60 is: 206,575,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,276,243.80 : 315,414,365.70 = 137,716,832.60 : x
  2. Step 2: Convert to fraction form
    210,276,243.80/315,414,365.70 = 137,716,832.60/x
  3. Step 3: Cross multiply
    210,276,243.80x = 315,414,365.70 × 137,716,832.60
  4. Step 4: Simplify right side
    210,276,243.80x = 43,437,867,400,742,080
  5. Step 5: Solve for x
    x = 43,437,867,400,742,080/210,276,243.80
  6. Step 6: Final answer
    x = 206,575,248.90

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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.