Home / 21,173,739.36-31,763,758.32-9,815,336.16

Finding the Fourth Proportional to 21,173,739.36, 31,763,758.32 and 9,815,336.16

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Solution

The fourth proportional to 21,173,739.36, 31,763,758.32 and 9,815,336.16 is: 14,724,464.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173,739.36 : 31,763,758.32 = 9,815,336.16 : x
  2. Step 2: Convert to fraction form
    21,173,739.36/31,763,758.32 = 9,815,336.16/x
  3. Step 3: Cross multiply
    21,173,739.36x = 31,763,758.32 × 9,815,336.16
  4. Step 4: Simplify right side
    21,173,739.36x = 311,771,965,615,796.88
  5. Step 5: Solve for x
    x = 311,771,965,615,796.88/21,173,739.36
  6. Step 6: Final answer
    x = 14,724,464.13

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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.