Home / 25,885,288.80-38,852,816.40-13,120,207.20

Finding the Fourth Proportional to 25,885,288.80, 38,852,816.40 and 13,120,207.20

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Solution

The fourth proportional to 25,885,288.80, 38,852,816.40 and 13,120,207.20 is: 19,692,923.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,885,288.80 : 38,852,816.40 = 13,120,207.20 : x
  2. Step 2: Convert to fraction form
    25,885,288.80/38,852,816.40 = 13,120,207.20/x
  3. Step 3: Cross multiply
    25,885,288.80x = 38,852,816.40 × 13,120,207.20
  4. Step 4: Simplify right side
    25,885,288.80x = 509,757,001,471,558.06
  5. Step 5: Solve for x
    x = 509,757,001,471,558.06/25,885,288.80
  6. Step 6: Final answer
    x = 19,692,923.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.