Home / 28,780,714.78-39,717,908.31-15,728,525.98

Finding the Fourth Proportional to 28,780,714.78, 39,717,908.31 and 15,728,525.98

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Solution

The fourth proportional to 28,780,714.78, 39,717,908.31 and 15,728,525.98 is: 21,705,651.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780,714.78 : 39,717,908.31 = 15,728,525.98 : x
  2. Step 2: Convert to fraction form
    28,780,714.78/39,717,908.31 = 15,728,525.98/x
  3. Step 3: Cross multiply
    28,780,714.78x = 39,717,908.31 × 15,728,525.98
  4. Step 4: Simplify right side
    28,780,714.78x = 624,704,152,725,093
  5. Step 5: Solve for x
    x = 624,704,152,725,093/28,780,714.78
  6. Step 6: Final answer
    x = 21,705,651.08

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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.