Home / 15,134,954.32-20,886,677.16-8,259,878.80

Finding the Fourth Proportional to 15,134,954.32, 20,886,677.16 and 8,259,878.80

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Solution

The fourth proportional to 15,134,954.32, 20,886,677.16 and 8,259,878.80 is: 11,398,872.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,134,954.32 : 20,886,677.16 = 8,259,878.80 : x
  2. Step 2: Convert to fraction form
    15,134,954.32/20,886,677.16 = 8,259,878.80/x
  3. Step 3: Cross multiply
    15,134,954.32x = 20,886,677.16 × 8,259,878.80
  4. Step 4: Simplify right side
    15,134,954.32x = 172,521,421,876,328.22
  5. Step 5: Solve for x
    x = 172,521,421,876,328.22/15,134,954.32
  6. Step 6: Final answer
    x = 11,398,872.98

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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.