Home / 51,201,261.72-76,801,966.50-20,909,124.72

Finding the Fourth Proportional to 51,201,261.72, 76,801,966.50 and 20,909,124.72

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Solution

The fourth proportional to 51,201,261.72, 76,801,966.50 and 20,909,124.72 is: 31,363,717.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,201,261.72 : 76,801,966.50 = 20,909,124.72 : x
  2. Step 2: Convert to fraction form
    51,201,261.72/76,801,966.50 = 20,909,124.72/x
  3. Step 3: Cross multiply
    51,201,261.72x = 76,801,966.50 × 20,909,124.72
  4. Step 4: Simplify right side
    51,201,261.72x = 1,605,861,896,289,761.75
  5. Step 5: Solve for x
    x = 1,605,861,896,289,761.75/51,201,261.72
  6. Step 6: Final answer
    x = 31,363,717.27

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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.