Home / 84,615,305.78-126,923,000.67-55,854,719.54

Finding the Fourth Proportional to 84,615,305.78, 126,923,000.67 and 55,854,719.54

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Solution

The fourth proportional to 84,615,305.78, 126,923,000.67 and 55,854,719.54 is: 83,782,107.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,615,305.78 : 126,923,000.67 = 55,854,719.54 : x
  2. Step 2: Convert to fraction form
    84,615,305.78/126,923,000.67 = 55,854,719.54/x
  3. Step 3: Cross multiply
    84,615,305.78x = 126,923,000.67 × 55,854,719.54
  4. Step 4: Simplify right side
    84,615,305.78x = 7,089,248,605,598,082
  5. Step 5: Solve for x
    x = 7,089,248,605,598,082/84,615,305.78
  6. Step 6: Final answer
    x = 83,782,107.03

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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.