Home / 28,557,999.40-39,409,808.58-15,504,999.40

Finding the Fourth Proportional to 28,557,999.40, 39,409,808.58 and 15,504,999.40

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Solution

The fourth proportional to 28,557,999.40, 39,409,808.58 and 15,504,999.40 is: 21,396,773.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,557,999.40 : 39,409,808.58 = 15,504,999.40 : x
  2. Step 2: Convert to fraction form
    28,557,999.40/39,409,808.58 = 15,504,999.40/x
  3. Step 3: Cross multiply
    28,557,999.40x = 39,409,808.58 × 15,504,999.40
  4. Step 4: Simplify right side
    28,557,999.40x = 611,049,058,387,014.88
  5. Step 5: Solve for x
    x = 611,049,058,387,014.88/28,557,999.40
  6. Step 6: Final answer
    x = 21,396,773.98

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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.