Home / 13,609,905.60-20,414,858.40-12,570,643.20

Finding the Fourth Proportional to 13,609,905.60, 20,414,858.40 and 12,570,643.20

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Solution

The fourth proportional to 13,609,905.60, 20,414,858.40 and 12,570,643.20 is: 18,855,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609,905.60 : 20,414,858.40 = 12,570,643.20 : x
  2. Step 2: Convert to fraction form
    13,609,905.60/20,414,858.40 = 12,570,643.20/x
  3. Step 3: Cross multiply
    13,609,905.60x = 20,414,858.40 × 12,570,643.20
  4. Step 4: Simplify right side
    13,609,905.60x = 256,627,900,924,922.84
  5. Step 5: Solve for x
    x = 256,627,900,924,922.84/13,609,905.60
  6. Step 6: Final answer
    x = 18,855,964.80

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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.