Home / 21,474,647.64-29,634,573.96-11,685,285.72

Finding the Fourth Proportional to 21,474,647.64, 29,634,573.96 and 11,685,285.72

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Solution

The fourth proportional to 21,474,647.64, 29,634,573.96 and 11,685,285.72 is: 16,125,454.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,474,647.64 : 29,634,573.96 = 11,685,285.72 : x
  2. Step 2: Convert to fraction form
    21,474,647.64/29,634,573.96 = 11,685,285.72/x
  3. Step 3: Cross multiply
    21,474,647.64x = 29,634,573.96 × 11,685,285.72
  4. Step 4: Simplify right side
    21,474,647.64x = 346,288,463,913,071.88
  5. Step 5: Solve for x
    x = 346,288,463,913,071.88/21,474,647.64
  6. Step 6: Final answer
    x = 16,125,454.99

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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.