Home / 51,376,138.40-77,064,207.60-21,105,725.60

Finding the Fourth Proportional to 51,376,138.40, 77,064,207.60 and 21,105,725.60

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Solution

The fourth proportional to 51,376,138.40, 77,064,207.60 and 21,105,725.60 is: 31,658,588.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,376,138.40 : 77,064,207.60 = 21,105,725.60 : x
  2. Step 2: Convert to fraction form
    51,376,138.40/77,064,207.60 = 21,105,725.60/x
  3. Step 3: Cross multiply
    51,376,138.40x = 77,064,207.60 × 21,105,725.60
  4. Step 4: Simplify right side
    51,376,138.40x = 1,626,496,019,187,034.50
  5. Step 5: Solve for x
    x = 1,626,496,019,187,034.50/51,376,138.40
  6. Step 6: Final answer
    x = 31,658,588.40

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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.