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Finding the Fourth Proportional to 9,387,510.05, 12,978,455.69 and 6,936,254.93

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Solution

The fourth proportional to 9,387,510.05, 12,978,455.69 and 6,936,254.93 is: 9,589,537.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,387,510.05 : 12,978,455.69 = 6,936,254.93 : x
  2. Step 2: Convert to fraction form
    9,387,510.05/12,978,455.69 = 6,936,254.93/x
  3. Step 3: Cross multiply
    9,387,510.05x = 12,978,455.69 × 6,936,254.93
  4. Step 4: Simplify right side
    9,387,510.05x = 90,021,877,228,867.78
  5. Step 5: Solve for x
    x = 90,021,877,228,867.78/9,387,510.05
  6. Step 6: Final answer
    x = 9,589,537.24

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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.