Home / 221,319,999.20-332,038,059.60-85,009,829.60

Finding the Fourth Proportional to 221,319,999.20, 332,038,059.60 and 85,009,829.60

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Solution

The fourth proportional to 221,319,999.20, 332,038,059.60 and 85,009,829.60 is: 127,537,045.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,319,999.20 : 332,038,059.60 = 85,009,829.60 : x
  2. Step 2: Convert to fraction form
    221,319,999.20/332,038,059.60 = 85,009,829.60/x
  3. Step 3: Cross multiply
    221,319,999.20x = 332,038,059.60 × 85,009,829.60
  4. Step 4: Simplify right side
    221,319,999.20x = 28,226,498,867,310,644
  5. Step 5: Solve for x
    x = 28,226,498,867,310,644/221,319,999.20
  6. Step 6: Final answer
    x = 127,537,045.77

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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.