Home / 28,335,791.56-42,489,712.41-11,938,081.90

Finding the Fourth Proportional to 28,335,791.56, 42,489,712.41 and 11,938,081.90

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Solution

The fourth proportional to 28,335,791.56, 42,489,712.41 and 11,938,081.90 is: 17,901,235.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335,791.56 : 42,489,712.41 = 11,938,081.90 : x
  2. Step 2: Convert to fraction form
    28,335,791.56/42,489,712.41 = 11,938,081.90/x
  3. Step 3: Cross multiply
    28,335,791.56x = 42,489,712.41 × 11,938,081.90
  4. Step 4: Simplify right side
    28,335,791.56x = 507,245,666,658,026.38
  5. Step 5: Solve for x
    x = 507,245,666,658,026.38/28,335,791.56
  6. Step 6: Final answer
    x = 17,901,235.11

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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.