Home / 13,259,842.80-19,889,764.20-12,692,972.40

Finding the Fourth Proportional to 13,259,842.80, 19,889,764.20 and 12,692,972.40

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Solution

The fourth proportional to 13,259,842.80, 19,889,764.20 and 12,692,972.40 is: 19,039,458.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259,842.80 : 19,889,764.20 = 12,692,972.40 : x
  2. Step 2: Convert to fraction form
    13,259,842.80/19,889,764.20 = 12,692,972.40/x
  3. Step 3: Cross multiply
    13,259,842.80x = 19,889,764.20 × 12,692,972.40
  4. Step 4: Simplify right side
    13,259,842.80x = 252,460,228,033,108.06
  5. Step 5: Solve for x
    x = 252,460,228,033,108.06/13,259,842.80
  6. Step 6: Final answer
    x = 19,039,458.60

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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.