Home / 13,188,774.30-18,200,615.42-7,308,506.72

Finding the Fourth Proportional to 13,188,774.30, 18,200,615.42 and 7,308,506.72

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Solution

The fourth proportional to 13,188,774.30, 18,200,615.42 and 7,308,506.72 is: 10,085,798.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188,774.30 : 18,200,615.42 = 7,308,506.72 : x
  2. Step 2: Convert to fraction form
    13,188,774.30/18,200,615.42 = 7,308,506.72/x
  3. Step 3: Cross multiply
    13,188,774.30x = 18,200,615.42 × 7,308,506.72
  4. Step 4: Simplify right side
    13,188,774.30x = 133,019,320,118,820.77
  5. Step 5: Solve for x
    x = 133,019,320,118,820.77/13,188,774.30
  6. Step 6: Final answer
    x = 10,085,798.50

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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.