Home / 15,480,055.92-21,361,939.11-9,973,662.87

Finding the Fourth Proportional to 15,480,055.92, 21,361,939.11 and 9,973,662.87

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Solution

The fourth proportional to 15,480,055.92, 21,361,939.11 and 9,973,662.87 is: 13,763,308.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,480,055.92 : 21,361,939.11 = 9,973,662.87 : x
  2. Step 2: Convert to fraction form
    15,480,055.92/21,361,939.11 = 9,973,662.87/x
  3. Step 3: Cross multiply
    15,480,055.92x = 21,361,939.11 × 9,973,662.87
  4. Step 4: Simplify right side
    15,480,055.92x = 213,056,778,932,607.81
  5. Step 5: Solve for x
    x = 213,056,778,932,607.81/15,480,055.92
  6. Step 6: Final answer
    x = 13,763,308.09

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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.