Home / 57,023,072.40-78,692,190.48-30,917,362.08

Finding the Fourth Proportional to 57,023,072.40, 78,692,190.48 and 30,917,362.08

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Solution

The fourth proportional to 57,023,072.40, 78,692,190.48 and 30,917,362.08 is: 42,666,149.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,023,072.40 : 78,692,190.48 = 30,917,362.08 : x
  2. Step 2: Convert to fraction form
    57,023,072.40/78,692,190.48 = 30,917,362.08/x
  3. Step 3: Cross multiply
    57,023,072.40x = 78,692,190.48 × 30,917,362.08
  4. Step 4: Simplify right side
    57,023,072.40x = 2,432,954,945,938,489
  5. Step 5: Solve for x
    x = 2,432,954,945,938,489/57,023,072.40
  6. Step 6: Final answer
    x = 42,666,149.75

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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.