Home / 137,465,918.15-189,701,633.31-74,742,015.23

Finding the Fourth Proportional to 137,465,918.15, 189,701,633.31 and 74,742,015.23

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Solution

The fourth proportional to 137,465,918.15, 189,701,633.31 and 74,742,015.23 is: 103,143,255.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,465,918.15 : 189,701,633.31 = 74,742,015.23 : x
  2. Step 2: Convert to fraction form
    137,465,918.15/189,701,633.31 = 74,742,015.23/x
  3. Step 3: Cross multiply
    137,465,918.15x = 189,701,633.31 × 74,742,015.23
  4. Step 4: Simplify right side
    137,465,918.15x = 14,178,682,364,689,676
  5. Step 5: Solve for x
    x = 14,178,682,364,689,676/137,465,918.15
  6. Step 6: Final answer
    x = 103,143,255.84

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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.