Home / 82,013,809.10-122,936,732.85-47,917,604.30

Finding the Fourth Proportional to 82,013,809.10, 122,936,732.85 and 47,917,604.30

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Solution

The fourth proportional to 82,013,809.10, 122,936,732.85 and 47,917,604.30 is: 71,827,339.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,013,809.10 : 122,936,732.85 = 47,917,604.30 : x
  2. Step 2: Convert to fraction form
    82,013,809.10/122,936,732.85 = 47,917,604.30/x
  3. Step 3: Cross multiply
    82,013,809.10x = 122,936,732.85 × 47,917,604.30
  4. Step 4: Simplify right side
    82,013,809.10x = 5,890,833,718,641,111
  5. Step 5: Solve for x
    x = 5,890,833,718,641,111/82,013,809.10
  6. Step 6: Final answer
    x = 71,827,339.61

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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.