Home / 15,401,401.47-21,254,184.68-8,431,961.40

Finding the Fourth Proportional to 15,401,401.47, 21,254,184.68 and 8,431,961.40

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Solution

The fourth proportional to 15,401,401.47, 21,254,184.68 and 8,431,961.40 is: 11,636,243.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401,401.47 : 21,254,184.68 = 8,431,961.40 : x
  2. Step 2: Convert to fraction form
    15,401,401.47/21,254,184.68 = 8,431,961.40/x
  3. Step 3: Cross multiply
    15,401,401.47x = 21,254,184.68 × 8,431,961.40
  4. Step 4: Simplify right side
    15,401,401.47x = 179,214,464,768,071.56
  5. Step 5: Solve for x
    x = 179,214,464,768,071.56/15,401,401.47
  6. Step 6: Final answer
    x = 11,636,243.96

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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.