Home / 154,959,511.10-213,859,230.05-115,733,186.58

Finding the Fourth Proportional to 154,959,511.10, 213,859,230.05 and 115,733,186.58

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Solution

The fourth proportional to 154,959,511.10, 213,859,230.05 and 115,733,186.58 is: 159,723,078.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,959,511.10 : 213,859,230.05 = 115,733,186.58 : x
  2. Step 2: Convert to fraction form
    154,959,511.10/213,859,230.05 = 115,733,186.58/x
  3. Step 3: Cross multiply
    154,959,511.10x = 213,859,230.05 × 115,733,186.58
  4. Step 4: Simplify right side
    154,959,511.10x = 24,750,610,173,672,676
  5. Step 5: Solve for x
    x = 24,750,610,173,672,676/154,959,511.10
  6. Step 6: Final answer
    x = 159,723,078.62

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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.