Home / 137,465,918.64-189,701,633.99-74,742,015.72

Finding the Fourth Proportional to 137,465,918.64, 189,701,633.99 and 74,742,015.72

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Solution

The fourth proportional to 137,465,918.64, 189,701,633.99 and 74,742,015.72 is: 103,143,256.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,465,918.64 : 189,701,633.99 = 74,742,015.72 : x
  2. Step 2: Convert to fraction form
    137,465,918.64/189,701,633.99 = 74,742,015.72/x
  3. Step 3: Cross multiply
    137,465,918.64x = 189,701,633.99 × 74,742,015.72
  4. Step 4: Simplify right side
    137,465,918.64x = 14,178,682,509,790,266
  5. Step 5: Solve for x
    x = 14,178,682,509,790,266/137,465,918.64
  6. Step 6: Final answer
    x = 103,143,256.53

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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.