Home / 120,708,924.30-180,939,383.55-59,203,485.90

Finding the Fourth Proportional to 120,708,924.30, 180,939,383.55 and 59,203,485.90

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Solution

The fourth proportional to 120,708,924.30, 180,939,383.55 and 59,203,485.90 is: 88,744,409.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,708,924.30 : 180,939,383.55 = 59,203,485.90 : x
  2. Step 2: Convert to fraction form
    120,708,924.30/180,939,383.55 = 59,203,485.90/x
  3. Step 3: Cross multiply
    120,708,924.30x = 180,939,383.55 × 59,203,485.90
  4. Step 4: Simplify right side
    120,708,924.30x = 10,712,242,242,757,118
  5. Step 5: Solve for x
    x = 10,712,242,242,757,118/120,708,924.30
  6. Step 6: Final answer
    x = 88,744,409.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.