Home / 15,401,403.16-21,254,186.98-8,431,963.08

Finding the Fourth Proportional to 15,401,403.16, 21,254,186.98 and 8,431,963.08

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Solution

The fourth proportional to 15,401,403.16, 21,254,186.98 and 8,431,963.08 is: 11,636,246.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401,403.16 : 21,254,186.98 = 8,431,963.08 : x
  2. Step 2: Convert to fraction form
    15,401,403.16/21,254,186.98 = 8,431,963.08/x
  3. Step 3: Cross multiply
    15,401,403.16x = 21,254,186.98 × 8,431,963.08
  4. Step 4: Simplify right side
    15,401,403.16x = 179,214,519,910,776.72
  5. Step 5: Solve for x
    x = 179,214,519,910,776.72/15,401,403.16
  6. Step 6: Final answer
    x = 11,636,246.26

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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.