Home / 13,977,029.76-19,288,261.56-7,865,458.20

Finding the Fourth Proportional to 13,977,029.76, 19,288,261.56 and 7,865,458.20

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Solution

The fourth proportional to 13,977,029.76, 19,288,261.56 and 7,865,458.20 is: 10,854,310.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977,029.76 : 19,288,261.56 = 7,865,458.20 : x
  2. Step 2: Convert to fraction form
    13,977,029.76/19,288,261.56 = 7,865,458.20/x
  3. Step 3: Cross multiply
    13,977,029.76x = 19,288,261.56 × 7,865,458.20
  4. Step 4: Simplify right side
    13,977,029.76x = 151,711,015,050,846.78
  5. Step 5: Solve for x
    x = 151,711,015,050,846.78/13,977,029.76
  6. Step 6: Final answer
    x = 10,854,310.08

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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.