Home / 21,325,454.76-29,398,518.90-15,203,254.44

Finding the Fourth Proportional to 21,325,454.76, 29,398,518.90 and 15,203,254.44

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Solution

The fourth proportional to 21,325,454.76, 29,398,518.90 and 15,203,254.44 is: 20,958,669.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325,454.76 : 29,398,518.90 = 15,203,254.44 : x
  2. Step 2: Convert to fraction form
    21,325,454.76/29,398,518.90 = 15,203,254.44/x
  3. Step 3: Cross multiply
    21,325,454.76x = 29,398,518.90 × 15,203,254.44
  4. Step 4: Simplify right side
    21,325,454.76x = 446,953,162,995,848.88
  5. Step 5: Solve for x
    x = 446,953,162,995,848.88/21,325,454.76
  6. Step 6: Final answer
    x = 20,958,669.72

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Double scale
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1.5x scale

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.