Home / 15,492,628.16-21,379,397.60-8,427,987.17

Finding the Fourth Proportional to 15,492,628.16, 21,379,397.60 and 8,427,987.17

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Solution

The fourth proportional to 15,492,628.16, 21,379,397.60 and 8,427,987.17 is: 11,630,388.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,492,628.16 : 21,379,397.60 = 8,427,987.17 : x
  2. Step 2: Convert to fraction form
    15,492,628.16/21,379,397.60 = 8,427,987.17/x
  3. Step 3: Cross multiply
    15,492,628.16x = 21,379,397.60 × 8,427,987.17
  4. Step 4: Simplify right side
    15,492,628.16x = 180,185,288,589,301.75
  5. Step 5: Solve for x
    x = 180,185,288,589,301.75/15,492,628.16
  6. Step 6: Final answer
    x = 11,630,388.78

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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.