Home / 12,142,545.22-18,208,630.08-7,028,504.97

Finding the Fourth Proportional to 12,142,545.22, 18,208,630.08 and 7,028,504.97

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Solution

The fourth proportional to 12,142,545.22, 18,208,630.08 and 7,028,504.97 is: 10,539,754.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,142,545.22 : 18,208,630.08 = 7,028,504.97 : x
  2. Step 2: Convert to fraction form
    12,142,545.22/18,208,630.08 = 7,028,504.97/x
  3. Step 3: Cross multiply
    12,142,545.22x = 18,208,630.08 × 7,028,504.97
  4. Step 4: Simplify right side
    12,142,545.22x = 127,979,446,926,124.97
  5. Step 5: Solve for x
    x = 127,979,446,926,124.97/12,142,545.22
  6. Step 6: Final answer
    x = 10,539,754.61

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1.5x scale

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.