Home / 7,878,858.42-11,814,855.20-4,185,073.88

Finding the Fourth Proportional to 7,878,858.42, 11,814,855.20 and 4,185,073.88

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Solution

The fourth proportional to 7,878,858.42, 11,814,855.20 and 4,185,073.88 is: 6,275,787.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,878,858.42 : 11,814,855.20 = 4,185,073.88 : x
  2. Step 2: Convert to fraction form
    7,878,858.42/11,814,855.20 = 4,185,073.88/x
  3. Step 3: Cross multiply
    7,878,858.42x = 11,814,855.20 × 4,185,073.88
  4. Step 4: Simplify right side
    7,878,858.42x = 49,446,041,893,502.17
  5. Step 5: Solve for x
    x = 49,446,041,893,502.17/7,878,858.42
  6. Step 6: Final answer
    x = 6,275,787.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.