Home / 39,143,261.75-54,018,370.25-21,502,907.60

Finding the Fourth Proportional to 39,143,261.75, 54,018,370.25 and 21,502,907.60

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Solution

The fourth proportional to 39,143,261.75, 54,018,370.25 and 21,502,907.60 is: 29,674,380.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,143,261.75 : 54,018,370.25 = 21,502,907.60 : x
  2. Step 2: Convert to fraction form
    39,143,261.75/54,018,370.25 = 21,502,907.60/x
  3. Step 3: Cross multiply
    39,143,261.75x = 54,018,370.25 × 21,502,907.60
  4. Step 4: Simplify right side
    39,143,261.75x = 1,161,552,023,810,732.50
  5. Step 5: Solve for x
    x = 1,161,552,023,810,732.50/39,143,261.75
  6. Step 6: Final answer
    x = 29,674,380.01

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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.