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Finding the Fourth Proportional to 6,856,641.78, 9,463,129.56 and 4,243,983.90

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Solution

The fourth proportional to 6,856,641.78, 9,463,129.56 and 4,243,983.90 is: 5,857,294.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,856,641.78 : 9,463,129.56 = 4,243,983.90 : x
  2. Step 2: Convert to fraction form
    6,856,641.78/9,463,129.56 = 4,243,983.90/x
  3. Step 3: Cross multiply
    6,856,641.78x = 9,463,129.56 × 4,243,983.90
  4. Step 4: Simplify right side
    6,856,641.78x = 40,161,369,496,254.09
  5. Step 5: Solve for x
    x = 40,161,369,496,254.09/6,856,641.78
  6. Step 6: Final answer
    x = 5,857,294.40

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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.