Home / 12,199,089.36-16,837,221.58-8,280,108.42

Finding the Fourth Proportional to 12,199,089.36, 16,837,221.58 and 8,280,108.42

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Solution

The fourth proportional to 12,199,089.36, 16,837,221.58 and 8,280,108.42 is: 11,428,231.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,199,089.36 : 16,837,221.58 = 8,280,108.42 : x
  2. Step 2: Convert to fraction form
    12,199,089.36/16,837,221.58 = 8,280,108.42/x
  3. Step 3: Cross multiply
    12,199,089.36x = 16,837,221.58 × 8,280,108.42
  4. Step 4: Simplify right side
    12,199,089.36x = 139,414,020,173,963.69
  5. Step 5: Solve for x
    x = 139,414,020,173,963.69/12,199,089.36
  6. Step 6: Final answer
    x = 11,428,231.74

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1.5x scale

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.