Home / 15,290,993.35-21,100,808.77-8,415,298.63

Finding the Fourth Proportional to 15,290,993.35, 21,100,808.77 and 8,415,298.63

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Solution

The fourth proportional to 15,290,993.35, 21,100,808.77 and 8,415,298.63 is: 11,612,692.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290,993.35 : 21,100,808.77 = 8,415,298.63 : x
  2. Step 2: Convert to fraction form
    15,290,993.35/21,100,808.77 = 8,415,298.63/x
  3. Step 3: Cross multiply
    15,290,993.35x = 21,100,808.77 × 8,415,298.63
  4. Step 4: Simplify right side
    15,290,993.35x = 177,569,607,134,073
  5. Step 5: Solve for x
    x = 177,569,607,134,073/15,290,993.35
  6. Step 6: Final answer
    x = 11,612,692.72

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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.