Home / 138,003,429.60-206,829,309.60-73,338,213.60

Finding the Fourth Proportional to 138,003,429.60, 206,829,309.60 and 73,338,213.60

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Solution

The fourth proportional to 138,003,429.60, 206,829,309.60 and 73,338,213.60 is: 109,913,877.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,003,429.60 : 206,829,309.60 = 73,338,213.60 : x
  2. Step 2: Convert to fraction form
    138,003,429.60/206,829,309.60 = 73,338,213.60/x
  3. Step 3: Cross multiply
    138,003,429.60x = 206,829,309.60 × 73,338,213.60
  4. Step 4: Simplify right side
    138,003,429.60x = 15,168,492,086,185,328
  5. Step 5: Solve for x
    x = 15,168,492,086,185,328/138,003,429.60
  6. Step 6: Final answer
    x = 109,913,877.72

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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.