Home / 321,984,735.40-444,615,112.02-311,572,809.64

Finding the Fourth Proportional to 321,984,735.40, 444,615,112.02 and 311,572,809.64

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Solution

The fourth proportional to 321,984,735.40, 444,615,112.02 and 311,572,809.64 is: 430,237,723.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,984,735.40 : 444,615,112.02 = 311,572,809.64 : x
  2. Step 2: Convert to fraction form
    321,984,735.40/444,615,112.02 = 311,572,809.64/x
  3. Step 3: Cross multiply
    321,984,735.40x = 444,615,112.02 × 311,572,809.64
  4. Step 4: Simplify right side
    321,984,735.40x = 138,529,979,660,474,720
  5. Step 5: Solve for x
    x = 138,529,979,660,474,720/321,984,735.40
  6. Step 6: Final answer
    x = 430,237,723.81

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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.