Home / 20,795,830.16-31,181,738.28-6,415,036.64

Finding the Fourth Proportional to 20,795,830.16, 31,181,738.28 and 6,415,036.64

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Solution

The fourth proportional to 20,795,830.16, 31,181,738.28 and 6,415,036.64 is: 9,618,851.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,795,830.16 : 31,181,738.28 = 6,415,036.64 : x
  2. Step 2: Convert to fraction form
    20,795,830.16/31,181,738.28 = 6,415,036.64/x
  3. Step 3: Cross multiply
    20,795,830.16x = 31,181,738.28 × 6,415,036.64
  4. Step 4: Simplify right side
    20,795,830.16x = 200,031,993,565,090.56
  5. Step 5: Solve for x
    x = 200,031,993,565,090.56/20,795,830.16
  6. Step 6: Final answer
    x = 9,618,851.09

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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.