Home / 25,898,830.40-38,848,245.60-21,111,924.80

Finding the Fourth Proportional to 25,898,830.40, 38,848,245.60 and 21,111,924.80

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Solution

The fourth proportional to 25,898,830.40, 38,848,245.60 and 21,111,924.80 is: 31,667,887.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,898,830.40 : 38,848,245.60 = 21,111,924.80 : x
  2. Step 2: Convert to fraction form
    25,898,830.40/38,848,245.60 = 21,111,924.80/x
  3. Step 3: Cross multiply
    25,898,830.40x = 38,848,245.60 × 21,111,924.80
  4. Step 4: Simplify right side
    25,898,830.40x = 820,161,239,719,131
  5. Step 5: Solve for x
    x = 820,161,239,719,131/25,898,830.40
  6. Step 6: Final answer
    x = 31,667,887.20

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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.