Home / 15,401,399.48-21,254,181.92-8,431,959.40

Finding the Fourth Proportional to 15,401,399.48, 21,254,181.92 and 8,431,959.40

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Solution

The fourth proportional to 15,401,399.48, 21,254,181.92 and 8,431,959.40 is: 11,636,241.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401,399.48 : 21,254,181.92 = 8,431,959.40 : x
  2. Step 2: Convert to fraction form
    15,401,399.48/21,254,181.92 = 8,431,959.40/x
  3. Step 3: Cross multiply
    15,401,399.48x = 21,254,181.92 × 8,431,959.40
  4. Step 4: Simplify right side
    15,401,399.48x = 179,214,399,029,654.06
  5. Step 5: Solve for x
    x = 179,214,399,029,654.06/15,401,399.48
  6. Step 6: Final answer
    x = 11,636,241.19

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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.