Home / 138,077,542.14-190,551,047.84-75,357,662.87

Finding the Fourth Proportional to 138,077,542.14, 190,551,047.84 and 75,357,662.87

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Solution

The fourth proportional to 138,077,542.14, 190,551,047.84 and 75,357,662.87 is: 103,995,779.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,077,542.14 : 190,551,047.84 = 75,357,662.87 : x
  2. Step 2: Convert to fraction form
    138,077,542.14/190,551,047.84 = 75,357,662.87/x
  3. Step 3: Cross multiply
    138,077,542.14x = 190,551,047.84 × 75,357,662.87
  4. Step 4: Simplify right side
    138,077,542.14x = 14,359,481,622,651,962
  5. Step 5: Solve for x
    x = 14,359,481,622,651,962/138,077,542.14
  6. Step 6: Final answer
    x = 103,995,779.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.