Home / 127,991,930.85-176,563,793.29-77,742,777.78

Finding the Fourth Proportional to 127,991,930.85, 176,563,793.29 and 77,742,777.78

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Solution

The fourth proportional to 127,991,930.85, 176,563,793.29 and 77,742,777.78 is: 107,245,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,991,930.85 : 176,563,793.29 = 77,742,777.78 : x
  2. Step 2: Convert to fraction form
    127,991,930.85/176,563,793.29 = 77,742,777.78/x
  3. Step 3: Cross multiply
    127,991,930.85x = 176,563,793.29 × 77,742,777.78
  4. Step 4: Simplify right side
    127,991,930.85x = 13,726,559,745,738,324
  5. Step 5: Solve for x
    x = 13,726,559,745,738,324/127,991,930.85
  6. Step 6: Final answer
    x = 107,245,508.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.