Home / 9,147,141.12-12,622,622.40-5,072,672.64

Finding the Fourth Proportional to 9,147,141.12, 12,622,622.40 and 5,072,672.64

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Solution

The fourth proportional to 9,147,141.12, 12,622,622.40 and 5,072,672.64 is: 7,000,048.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147,141.12 : 12,622,622.40 = 5,072,672.64 : x
  2. Step 2: Convert to fraction form
    9,147,141.12/12,622,622.40 = 5,072,672.64/x
  3. Step 3: Cross multiply
    9,147,141.12x = 12,622,622.40 × 5,072,672.64
  4. Step 4: Simplify right side
    9,147,141.12x = 64,030,431,293,531.13
  5. Step 5: Solve for x
    x = 64,030,431,293,531.13/9,147,141.12
  6. Step 6: Final answer
    x = 7,000,048.48

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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.