Home / 20,646,781.94-28,493,290.22-11,355,071.19

Finding the Fourth Proportional to 20,646,781.94, 28,493,290.22 and 11,355,071.19

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Solution

The fourth proportional to 20,646,781.94, 28,493,290.22 and 11,355,071.19 is: 15,670,400.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,646,781.94 : 28,493,290.22 = 11,355,071.19 : x
  2. Step 2: Convert to fraction form
    20,646,781.94/28,493,290.22 = 11,355,071.19/x
  3. Step 3: Cross multiply
    20,646,781.94x = 28,493,290.22 × 11,355,071.19
  4. Step 4: Simplify right side
    20,646,781.94x = 323,543,338,828,655.38
  5. Step 5: Solve for x
    x = 323,543,338,828,655.38/20,646,781.94
  6. Step 6: Final answer
    x = 15,670,400.35

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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.