Home / 28,708,163.72-39,617,328.60-16,318,333.05

Finding the Fourth Proportional to 28,708,163.72, 39,617,328.60 and 16,318,333.05

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Solution

The fourth proportional to 28,708,163.72, 39,617,328.60 and 16,318,333.05 is: 22,519,335.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,708,163.72 : 39,617,328.60 = 16,318,333.05 : x
  2. Step 2: Convert to fraction form
    28,708,163.72/39,617,328.60 = 16,318,333.05/x
  3. Step 3: Cross multiply
    28,708,163.72x = 39,617,328.60 × 16,318,333.05
  4. Step 4: Simplify right side
    28,708,163.72x = 646,488,762,720,372.75
  5. Step 5: Solve for x
    x = 646,488,762,720,372.75/28,708,163.72
  6. Step 6: Final answer
    x = 22,519,335.23

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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.