Home / 13,426,588.07-18,530,913.67-7,921,308.86

Finding the Fourth Proportional to 13,426,588.07, 18,530,913.67 and 7,921,308.86

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Solution

The fourth proportional to 13,426,588.07, 18,530,913.67 and 7,921,308.86 is: 10,932,717.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426,588.07 : 18,530,913.67 = 7,921,308.86 : x
  2. Step 2: Convert to fraction form
    13,426,588.07/18,530,913.67 = 7,921,308.86/x
  3. Step 3: Cross multiply
    13,426,588.07x = 18,530,913.67 × 7,921,308.86
  4. Step 4: Simplify right side
    13,426,588.07x = 146,789,090,525,608.28
  5. Step 5: Solve for x
    x = 146,789,090,525,608.28/13,426,588.07
  6. Step 6: Final answer
    x = 10,932,717.22

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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.