Home / 13,759,809.46-18,988,549.20-7,564,961.57

Finding the Fourth Proportional to 13,759,809.46, 18,988,549.20 and 7,564,961.57

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Solution

The fourth proportional to 13,759,809.46, 18,988,549.20 and 7,564,961.57 is: 10,439,653.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,759,809.46 : 18,988,549.20 = 7,564,961.57 : x
  2. Step 2: Convert to fraction form
    13,759,809.46/18,988,549.20 = 7,564,961.57/x
  3. Step 3: Cross multiply
    13,759,809.46x = 18,988,549.20 × 7,564,961.57
  4. Step 4: Simplify right side
    13,759,809.46x = 143,647,644,968,054.25
  5. Step 5: Solve for x
    x = 143,647,644,968,054.25/13,759,809.46
  6. Step 6: Final answer
    x = 10,439,653.64

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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.