Home / 21,285,451.32-29,373,950.28-12,118,093.80

Finding the Fourth Proportional to 21,285,451.32, 29,373,950.28 and 12,118,093.80

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Solution

The fourth proportional to 21,285,451.32, 29,373,950.28 and 12,118,093.80 is: 16,722,985.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,285,451.32 : 29,373,950.28 = 12,118,093.80 : x
  2. Step 2: Convert to fraction form
    21,285,451.32/29,373,950.28 = 12,118,093.80/x
  3. Step 3: Cross multiply
    21,285,451.32x = 29,373,950.28 × 12,118,093.80
  4. Step 4: Simplify right side
    21,285,451.32x = 355,956,284,769,576.31
  5. Step 5: Solve for x
    x = 355,956,284,769,576.31/21,285,451.32
  6. Step 6: Final answer
    x = 16,722,985.08

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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.