Home / 28,507,631.70-39,340,840.02-16,747,395.78

Finding the Fourth Proportional to 28,507,631.70, 39,340,840.02 and 16,747,395.78

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Solution

The fourth proportional to 28,507,631.70, 39,340,840.02 and 16,747,395.78 is: 23,111,587.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,507,631.70 : 39,340,840.02 = 16,747,395.78 : x
  2. Step 2: Convert to fraction form
    28,507,631.70/39,340,840.02 = 16,747,395.78/x
  3. Step 3: Cross multiply
    28,507,631.70x = 39,340,840.02 × 16,747,395.78
  4. Step 4: Simplify right side
    28,507,631.70x = 658,856,618,132,603.12
  5. Step 5: Solve for x
    x = 658,856,618,132,603.12/28,507,631.70
  6. Step 6: Final answer
    x = 23,111,587.28

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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.