Home / 13,056,768.72-18,018,528.21-7,176,947.49

Finding the Fourth Proportional to 13,056,768.72, 18,018,528.21 and 7,176,947.49

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Solution

The fourth proportional to 13,056,768.72, 18,018,528.21 and 7,176,947.49 is: 9,904,290.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056,768.72 : 18,018,528.21 = 7,176,947.49 : x
  2. Step 2: Convert to fraction form
    13,056,768.72/18,018,528.21 = 7,176,947.49/x
  3. Step 3: Cross multiply
    13,056,768.72x = 18,018,528.21 × 7,176,947.49
  4. Step 4: Simplify right side
    13,056,768.72x = 129,318,030,810,253.70
  5. Step 5: Solve for x
    x = 129,318,030,810,253.70/13,056,768.72
  6. Step 6: Final answer
    x = 9,904,290.53

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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.