Home / 87,000,004.80-120,030,620.16-49,319,126.32

Finding the Fourth Proportional to 87,000,004.80, 120,030,620.16 and 49,319,126.32

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Solution

The fourth proportional to 87,000,004.80, 120,030,620.16 and 49,319,126.32 is: 68,043,735.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,000,004.80 : 120,030,620.16 = 49,319,126.32 : x
  2. Step 2: Convert to fraction form
    87,000,004.80/120,030,620.16 = 49,319,126.32/x
  3. Step 3: Cross multiply
    87,000,004.80x = 120,030,620.16 × 49,319,126.32
  4. Step 4: Simplify right side
    87,000,004.80x = 5,919,805,317,938,978
  5. Step 5: Solve for x
    x = 5,919,805,317,938,978/87,000,004.80
  6. Step 6: Final answer
    x = 68,043,735.53

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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.