Home / 149,609,307.05-206,530,820.23-86,873,184.96

Finding the Fourth Proportional to 149,609,307.05, 206,530,820.23 and 86,873,184.96

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Solution

The fourth proportional to 149,609,307.05, 206,530,820.23 and 86,873,184.96 is: 119,925,628.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,609,307.05 : 206,530,820.23 = 86,873,184.96 : x
  2. Step 2: Convert to fraction form
    149,609,307.05/206,530,820.23 = 86,873,184.96/x
  3. Step 3: Cross multiply
    149,609,307.05x = 206,530,820.23 × 86,873,184.96
  4. Step 4: Simplify right side
    149,609,307.05x = 17,941,990,145,781,298
  5. Step 5: Solve for x
    x = 17,941,990,145,781,298/149,609,307.05
  6. Step 6: Final answer
    x = 119,925,628.29

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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.