Home / 57,456,469.20-86,184,703.80-19,121,858.40

Finding the Fourth Proportional to 57,456,469.20, 86,184,703.80 and 19,121,858.40

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Solution

The fourth proportional to 57,456,469.20, 86,184,703.80 and 19,121,858.40 is: 28,682,787.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,456,469.20 : 86,184,703.80 = 19,121,858.40 : x
  2. Step 2: Convert to fraction form
    57,456,469.20/86,184,703.80 = 19,121,858.40/x
  3. Step 3: Cross multiply
    57,456,469.20x = 86,184,703.80 × 19,121,858.40
  4. Step 4: Simplify right side
    57,456,469.20x = 1,648,011,702,309,541.75
  5. Step 5: Solve for x
    x = 1,648,011,702,309,541.75/57,456,469.20
  6. Step 6: Final answer
    x = 28,682,787.60

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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.