Home / 39,109,064.54-53,967,994.89-21,705,421.55

Finding the Fourth Proportional to 39,109,064.54, 53,967,994.89 and 21,705,421.55

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Solution

The fourth proportional to 39,109,064.54, 53,967,994.89 and 21,705,421.55 is: 29,952,086.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,109,064.54 : 53,967,994.89 = 21,705,421.55 : x
  2. Step 2: Convert to fraction form
    39,109,064.54/53,967,994.89 = 21,705,421.55/x
  3. Step 3: Cross multiply
    39,109,064.54x = 53,967,994.89 × 21,705,421.55
  4. Step 4: Simplify right side
    39,109,064.54x = 1,171,398,079,295,696
  5. Step 5: Solve for x
    x = 1,171,398,079,295,696/39,109,064.54
  6. Step 6: Final answer
    x = 29,952,086.38

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1.5x scale

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.