Home / 28,003,759-42,012,723.30-7,809,003.16

Finding the Fourth Proportional to 28,003,759, 42,012,723.30 and 7,809,003.16

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Solution

The fourth proportional to 28,003,759, 42,012,723.30 and 7,809,003.16 is: 11,715,480.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003,759 : 42,012,723.30 = 7,809,003.16 : x
  2. Step 2: Convert to fraction form
    28,003,759/42,012,723.30 = 7,809,003.16/x
  3. Step 3: Cross multiply
    28,003,759x = 42,012,723.30 × 7,809,003.16
  4. Step 4: Simplify right side
    28,003,759x = 328,077,489,009,905.62
  5. Step 5: Solve for x
    x = 328,077,489,009,905.62/28,003,759
  6. Step 6: Final answer
    x = 11,715,480.38

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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.