Home / 138,077,541.14-190,551,046.46-75,357,661.87

Finding the Fourth Proportional to 138,077,541.14, 190,551,046.46 and 75,357,661.87

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Solution

The fourth proportional to 138,077,541.14, 190,551,046.46 and 75,357,661.87 is: 103,995,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,077,541.14 : 190,551,046.46 = 75,357,661.87 : x
  2. Step 2: Convert to fraction form
    138,077,541.14/190,551,046.46 = 75,357,661.87/x
  3. Step 3: Cross multiply
    138,077,541.14x = 190,551,046.46 × 75,357,661.87
  4. Step 4: Simplify right side
    138,077,541.14x = 14,359,481,327,968,742
  5. Step 5: Solve for x
    x = 14,359,481,327,968,742/138,077,541.14
  6. Step 6: Final answer
    x = 103,995,778.10

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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.