Home / 7,319,837.40-10,993,431.84-6,443,787.36

Finding the Fourth Proportional to 7,319,837.40, 10,993,431.84 and 6,443,787.36

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Solution

The fourth proportional to 7,319,837.40, 10,993,431.84 and 6,443,787.36 is: 9,677,720.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319,837.40 : 10,993,431.84 = 6,443,787.36 : x
  2. Step 2: Convert to fraction form
    7,319,837.40/10,993,431.84 = 6,443,787.36/x
  3. Step 3: Cross multiply
    7,319,837.40x = 10,993,431.84 × 6,443,787.36
  4. Step 4: Simplify right side
    7,319,837.40x = 70,839,337,133,613.55
  5. Step 5: Solve for x
    x = 70,839,337,133,613.55/7,319,837.40
  6. Step 6: Final answer
    x = 9,677,720.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.