Home / 12,162,021.04-16,801,818.93-7,985,614.45

Finding the Fourth Proportional to 12,162,021.04, 16,801,818.93 and 7,985,614.45

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Solution

The fourth proportional to 12,162,021.04, 16,801,818.93 and 7,985,614.45 is: 11,032,117.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162,021.04 : 16,801,818.93 = 7,985,614.45 : x
  2. Step 2: Convert to fraction form
    12,162,021.04/16,801,818.93 = 7,985,614.45/x
  3. Step 3: Cross multiply
    12,162,021.04x = 16,801,818.93 × 7,985,614.45
  4. Step 4: Simplify right side
    12,162,021.04x = 134,172,848,033,691.55
  5. Step 5: Solve for x
    x = 134,172,848,033,691.55/12,162,021.04
  6. Step 6: Final answer
    x = 11,032,117.74

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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.