Home / 149,892,799.52-206,788,717.14-100,349,113.88

Finding the Fourth Proportional to 149,892,799.52, 206,788,717.14 and 100,349,113.88

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Solution

The fourth proportional to 149,892,799.52, 206,788,717.14 and 100,349,113.88 is: 138,439,368.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,892,799.52 : 206,788,717.14 = 100,349,113.88 : x
  2. Step 2: Convert to fraction form
    149,892,799.52/206,788,717.14 = 100,349,113.88/x
  3. Step 3: Cross multiply
    149,892,799.52x = 206,788,717.14 × 100,349,113.88
  4. Step 4: Simplify right side
    149,892,799.52x = 20,751,064,525,380,964
  5. Step 5: Solve for x
    x = 20,751,064,525,380,964/149,892,799.52
  6. Step 6: Final answer
    x = 138,439,368.61

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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.