Home / 28,462,747.92-39,278,899.80-15,410,278.32

Finding the Fourth Proportional to 28,462,747.92, 39,278,899.80 and 15,410,278.32

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Solution

The fourth proportional to 28,462,747.92, 39,278,899.80 and 15,410,278.32 is: 21,266,350.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,462,747.92 : 39,278,899.80 = 15,410,278.32 : x
  2. Step 2: Convert to fraction form
    28,462,747.92/39,278,899.80 = 15,410,278.32/x
  3. Step 3: Cross multiply
    28,462,747.92x = 39,278,899.80 × 15,410,278.32
  4. Step 4: Simplify right side
    28,462,747.92x = 605,298,778,021,392.25
  5. Step 5: Solve for x
    x = 605,298,778,021,392.25/28,462,747.92
  6. Step 6: Final answer
    x = 21,266,350.66

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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.