Home / 21,567,554.40-29,727,789.84-15,290,222.88

Finding the Fourth Proportional to 21,567,554.40, 29,727,789.84 and 15,290,222.88

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Solution

The fourth proportional to 21,567,554.40, 29,727,789.84 and 15,290,222.88 is: 21,075,385.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,567,554.40 : 29,727,789.84 = 15,290,222.88 : x
  2. Step 2: Convert to fraction form
    21,567,554.40/29,727,789.84 = 15,290,222.88/x
  3. Step 3: Cross multiply
    21,567,554.40x = 29,727,789.84 × 15,290,222.88
  4. Step 4: Simplify right side
    21,567,554.40x = 454,544,532,383,399.56
  5. Step 5: Solve for x
    x = 454,544,532,383,399.56/21,567,554.40
  6. Step 6: Final answer
    x = 21,075,385.92

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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.