Home / 12,642,992.25-18,956,808.77-4,957,429.22

Finding the Fourth Proportional to 12,642,992.25, 18,956,808.77 and 4,957,429.22

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Solution

The fourth proportional to 12,642,992.25, 18,956,808.77 and 4,957,429.22 is: 7,433,132.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,642,992.25 : 18,956,808.77 = 4,957,429.22 : x
  2. Step 2: Convert to fraction form
    12,642,992.25/18,956,808.77 = 4,957,429.22/x
  3. Step 3: Cross multiply
    12,642,992.25x = 18,956,808.77 × 4,957,429.22
  4. Step 4: Simplify right side
    12,642,992.25x = 93,977,037,594,779.06
  5. Step 5: Solve for x
    x = 93,977,037,594,779.06/12,642,992.25
  6. Step 6: Final answer
    x = 7,433,132.58

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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.