Home / 221,266,353.60-305,339,564.34-122,144,973.30

Finding the Fourth Proportional to 221,266,353.60, 305,339,564.34 and 122,144,973.30

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Solution

The fourth proportional to 221,266,353.60, 305,339,564.34 and 122,144,973.30 is: 168,555,644.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,266,353.60 : 305,339,564.34 = 122,144,973.30 : x
  2. Step 2: Convert to fraction form
    221,266,353.60/305,339,564.34 = 122,144,973.30/x
  3. Step 3: Cross multiply
    221,266,353.60x = 305,339,564.34 × 122,144,973.30
  4. Step 4: Simplify right side
    221,266,353.60x = 37,295,692,933,742,928
  5. Step 5: Solve for x
    x = 37,295,692,933,742,928/221,266,353.60
  6. Step 6: Final answer
    x = 168,555,644.94

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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.