Home / 68,124,627.72-102,185,979.12-31,712,652.36

Finding the Fourth Proportional to 68,124,627.72, 102,185,979.12 and 31,712,652.36

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Solution

The fourth proportional to 68,124,627.72, 102,185,979.12 and 31,712,652.36 is: 47,568,530.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,124,627.72 : 102,185,979.12 = 31,712,652.36 : x
  2. Step 2: Convert to fraction form
    68,124,627.72/102,185,979.12 = 31,712,652.36/x
  3. Step 3: Cross multiply
    68,124,627.72x = 102,185,979.12 × 31,712,652.36
  4. Step 4: Simplify right side
    68,124,627.72x = 3,240,588,431,898,779
  5. Step 5: Solve for x
    x = 3,240,588,431,898,779/68,124,627.72
  6. Step 6: Final answer
    x = 47,568,530.51

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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.