Home / 130,206,404.86-179,833,968.12-85,751,102.32

Finding the Fourth Proportional to 130,206,404.86, 179,833,968.12 and 85,751,102.32

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Solution

The fourth proportional to 130,206,404.86, 179,833,968.12 and 85,751,102.32 is: 118,434,734.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,206,404.86 : 179,833,968.12 = 85,751,102.32 : x
  2. Step 2: Convert to fraction form
    130,206,404.86/179,833,968.12 = 85,751,102.32/x
  3. Step 3: Cross multiply
    130,206,404.86x = 179,833,968.12 × 85,751,102.32
  4. Step 4: Simplify right side
    130,206,404.86x = 15,420,961,000,869,738
  5. Step 5: Solve for x
    x = 15,420,961,000,869,738/130,206,404.86
  6. Step 6: Final answer
    x = 118,434,734.59

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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.