Home / 101,020,850.80-139,405,379.88-63,871,127.44

Finding the Fourth Proportional to 101,020,850.80, 139,405,379.88 and 63,871,127.44

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Solution

The fourth proportional to 101,020,850.80, 139,405,379.88 and 63,871,127.44 is: 88,140,009.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,020,850.80 : 139,405,379.88 = 63,871,127.44 : x
  2. Step 2: Convert to fraction form
    101,020,850.80/139,405,379.88 = 63,871,127.44/x
  3. Step 3: Cross multiply
    101,020,850.80x = 139,405,379.88 × 63,871,127.44
  4. Step 4: Simplify right side
    101,020,850.80x = 8,903,978,784,137,091
  5. Step 5: Solve for x
    x = 8,903,978,784,137,091/101,020,850.80
  6. Step 6: Final answer
    x = 88,140,009.85

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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.