Home / 139,953,846.90-193,174,723.29-81,235,429.26

Finding the Fourth Proportional to 139,953,846.90, 193,174,723.29 and 81,235,429.26

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Solution

The fourth proportional to 139,953,846.90, 193,174,723.29 and 81,235,429.26 is: 112,127,189.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,953,846.90 : 193,174,723.29 = 81,235,429.26 : x
  2. Step 2: Convert to fraction form
    139,953,846.90/193,174,723.29 = 81,235,429.26/x
  3. Step 3: Cross multiply
    139,953,846.90x = 193,174,723.29 × 81,235,429.26
  4. Step 4: Simplify right side
    139,953,846.90x = 15,692,631,568,644,870
  5. Step 5: Solve for x
    x = 15,692,631,568,644,870/139,953,846.90
  6. Step 6: Final answer
    x = 112,127,189.90

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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.