Home / 43,009,385.20-64,439,428.20-40,321,999.60

Finding the Fourth Proportional to 43,009,385.20, 64,439,428.20 and 40,321,999.60

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Solution

The fourth proportional to 43,009,385.20, 64,439,428.20 and 40,321,999.60 is: 60,413,014.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,009,385.20 : 64,439,428.20 = 40,321,999.60 : x
  2. Step 2: Convert to fraction form
    43,009,385.20/64,439,428.20 = 40,321,999.60/x
  3. Step 3: Cross multiply
    43,009,385.20x = 64,439,428.20 × 40,321,999.60
  4. Step 4: Simplify right side
    43,009,385.20x = 2,598,326,598,104,629
  5. Step 5: Solve for x
    x = 2,598,326,598,104,629/43,009,385.20
  6. Step 6: Final answer
    x = 60,413,014.18

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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.