Home / 101,219,235.80-139,683,216.15-54,809,489.57

Finding the Fourth Proportional to 101,219,235.80, 139,683,216.15 and 54,809,489.57

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Solution

The fourth proportional to 101,219,235.80, 139,683,216.15 and 54,809,489.57 is: 75,637,458.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,219,235.80 : 139,683,216.15 = 54,809,489.57 : x
  2. Step 2: Convert to fraction form
    101,219,235.80/139,683,216.15 = 54,809,489.57/x
  3. Step 3: Cross multiply
    101,219,235.80x = 139,683,216.15 × 54,809,489.57
  4. Step 4: Simplify right side
    101,219,235.80x = 7,655,965,777,979,064
  5. Step 5: Solve for x
    x = 7,655,965,777,979,064/101,219,235.80
  6. Step 6: Final answer
    x = 75,637,458.81

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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.