Home / 127,910,731.20-191,810,109.60-51,208,267.20

Finding the Fourth Proportional to 127,910,731.20, 191,810,109.60 and 51,208,267.20

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Solution

The fourth proportional to 127,910,731.20, 191,810,109.60 and 51,208,267.20 is: 76,789,986.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,910,731.20 : 191,810,109.60 = 51,208,267.20 : x
  2. Step 2: Convert to fraction form
    127,910,731.20/191,810,109.60 = 51,208,267.20/x
  3. Step 3: Cross multiply
    127,910,731.20x = 191,810,109.60 × 51,208,267.20
  4. Step 4: Simplify right side
    127,910,731.20x = 9,822,263,344,058,086
  5. Step 5: Solve for x
    x = 9,822,263,344,058,086/127,910,731.20
  6. Step 6: Final answer
    x = 76,789,986.67

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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.