Home / 12,876,573.60-17,771,216.40-7,722,770.40

Finding the Fourth Proportional to 12,876,573.60, 17,771,216.40 and 7,722,770.40

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Solution

The fourth proportional to 12,876,573.60, 17,771,216.40 and 7,722,770.40 is: 10,658,349.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876,573.60 : 17,771,216.40 = 7,722,770.40 : x
  2. Step 2: Convert to fraction form
    12,876,573.60/17,771,216.40 = 7,722,770.40/x
  3. Step 3: Cross multiply
    12,876,573.60x = 17,771,216.40 × 7,722,770.40
  4. Step 4: Simplify right side
    12,876,573.60x = 137,243,023,985,914.56
  5. Step 5: Solve for x
    x = 137,243,023,985,914.56/12,876,573.60
  6. Step 6: Final answer
    x = 10,658,349.67

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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.