Home / 18,990,489.52-26,206,840.08-10,288,878.40

Finding the Fourth Proportional to 18,990,489.52, 26,206,840.08 and 10,288,878.40

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Solution

The fourth proportional to 18,990,489.52, 26,206,840.08 and 10,288,878.40 is: 14,198,632.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,990,489.52 : 26,206,840.08 = 10,288,878.40 : x
  2. Step 2: Convert to fraction form
    18,990,489.52/26,206,840.08 = 10,288,878.40/x
  3. Step 3: Cross multiply
    18,990,489.52x = 26,206,840.08 × 10,288,878.40
  4. Step 4: Simplify right side
    18,990,489.52x = 269,638,990,831,366.25
  5. Step 5: Solve for x
    x = 269,638,990,831,366.25/18,990,489.52
  6. Step 6: Final answer
    x = 14,198,632.98

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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.