Home / 13,320,355.52-18,382,090.20-7,208,783.96

Finding the Fourth Proportional to 13,320,355.52, 18,382,090.20 and 7,208,783.96

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Solution

The fourth proportional to 13,320,355.52, 18,382,090.20 and 7,208,783.96 is: 9,948,121.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320,355.52 : 18,382,090.20 = 7,208,783.96 : x
  2. Step 2: Convert to fraction form
    13,320,355.52/18,382,090.20 = 7,208,783.96/x
  3. Step 3: Cross multiply
    13,320,355.52x = 18,382,090.20 × 7,208,783.96
  4. Step 4: Simplify right side
    13,320,355.52x = 132,512,516,985,033.19
  5. Step 5: Solve for x
    x = 132,512,516,985,033.19/13,320,355.52
  6. Step 6: Final answer
    x = 9,948,121.64

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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.