Home / 57,781,912.40-86,672,868.60-19,430,680.40

Finding the Fourth Proportional to 57,781,912.40, 86,672,868.60 and 19,430,680.40

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Solution

The fourth proportional to 57,781,912.40, 86,672,868.60 and 19,430,680.40 is: 29,146,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,781,912.40 : 86,672,868.60 = 19,430,680.40 : x
  2. Step 2: Convert to fraction form
    57,781,912.40/86,672,868.60 = 19,430,680.40/x
  3. Step 3: Cross multiply
    57,781,912.40x = 86,672,868.60 × 19,430,680.40
  4. Step 4: Simplify right side
    57,781,912.40x = 1,684,112,809,117,795.25
  5. Step 5: Solve for x
    x = 1,684,112,809,117,795.25/57,781,912.40
  6. Step 6: Final answer
    x = 29,146,020.60

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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.