Home / 51,201,272.52-76,801,982.70-20,909,135.52

Finding the Fourth Proportional to 51,201,272.52, 76,801,982.70 and 20,909,135.52

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Solution

The fourth proportional to 51,201,272.52, 76,801,982.70 and 20,909,135.52 is: 31,363,733.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,201,272.52 : 76,801,982.70 = 20,909,135.52 : x
  2. Step 2: Convert to fraction form
    51,201,272.52/76,801,982.70 = 20,909,135.52/x
  3. Step 3: Cross multiply
    51,201,272.52x = 76,801,982.70 × 20,909,135.52
  4. Step 4: Simplify right side
    51,201,272.52x = 1,605,863,064,478,995.50
  5. Step 5: Solve for x
    x = 1,605,863,064,478,995.50/51,201,272.52
  6. Step 6: Final answer
    x = 31,363,733.47

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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.