Home / 39,128,787.06-53,996,698.67-21,724,684.80

Finding the Fourth Proportional to 39,128,787.06, 53,996,698.67 and 21,724,684.80

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Solution

The fourth proportional to 39,128,787.06, 53,996,698.67 and 21,724,684.80 is: 29,979,494.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,128,787.06 : 53,996,698.67 = 21,724,684.80 : x
  2. Step 2: Convert to fraction form
    39,128,787.06/53,996,698.67 = 21,724,684.80/x
  3. Step 3: Cross multiply
    39,128,787.06x = 53,996,698.67 × 21,724,684.80
  4. Step 4: Simplify right side
    39,128,787.06x = 1,173,061,258,846,329.25
  5. Step 5: Solve for x
    x = 1,173,061,258,846,329.25/39,128,787.06
  6. Step 6: Final answer
    x = 29,979,494.56

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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.