Home / 74,010,874.92-102,136,216.52-40,519,795.20

Finding the Fourth Proportional to 74,010,874.92, 102,136,216.52 and 40,519,795.20

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Solution

The fourth proportional to 74,010,874.92, 102,136,216.52 and 40,519,795.20 is: 55,917,979.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,010,874.92 : 102,136,216.52 = 40,519,795.20 : x
  2. Step 2: Convert to fraction form
    74,010,874.92/102,136,216.52 = 40,519,795.20/x
  3. Step 3: Cross multiply
    74,010,874.92x = 102,136,216.52 × 40,519,795.20
  4. Step 4: Simplify right side
    74,010,874.92x = 4,138,538,575,893,257
  5. Step 5: Solve for x
    x = 4,138,538,575,893,257/74,010,874.92
  6. Step 6: Final answer
    x = 55,917,979.36

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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.