Home / 13,670,448.54-18,865,223.88-7,789,914.48

Finding the Fourth Proportional to 13,670,448.54, 18,865,223.88 and 7,789,914.48

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Solution

The fourth proportional to 13,670,448.54, 18,865,223.88 and 7,789,914.48 is: 10,750,084.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670,448.54 : 18,865,223.88 = 7,789,914.48 : x
  2. Step 2: Convert to fraction form
    13,670,448.54/18,865,223.88 = 7,789,914.48/x
  3. Step 3: Cross multiply
    13,670,448.54x = 18,865,223.88 × 7,789,914.48
  4. Step 4: Simplify right side
    13,670,448.54x = 146,958,480,671,253.78
  5. Step 5: Solve for x
    x = 146,958,480,671,253.78/13,670,448.54
  6. Step 6: Final answer
    x = 10,750,084.77

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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.