Home / 25,631,709.78-38,453,864.40-7,680,813.78

Finding the Fourth Proportional to 25,631,709.78, 38,453,864.40 and 7,680,813.78

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Solution

The fourth proportional to 25,631,709.78, 38,453,864.40 and 7,680,813.78 is: 11,523,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,631,709.78 : 38,453,864.40 = 7,680,813.78 : x
  2. Step 2: Convert to fraction form
    25,631,709.78/38,453,864.40 = 7,680,813.78/x
  3. Step 3: Cross multiply
    25,631,709.78x = 38,453,864.40 × 7,680,813.78
  4. Step 4: Simplify right side
    25,631,709.78x = 295,356,971,577,771.44
  5. Step 5: Solve for x
    x = 295,356,971,577,771.44/25,631,709.78
  6. Step 6: Final answer
    x = 11,523,108.45

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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.