Home / 321,984,734.40-444,615,110.64-311,572,808.64

Finding the Fourth Proportional to 321,984,734.40, 444,615,110.64 and 311,572,808.64

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Solution

The fourth proportional to 321,984,734.40, 444,615,110.64 and 311,572,808.64 is: 430,237,722.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,984,734.40 : 444,615,110.64 = 311,572,808.64 : x
  2. Step 2: Convert to fraction form
    321,984,734.40/444,615,110.64 = 311,572,808.64/x
  3. Step 3: Cross multiply
    321,984,734.40x = 444,615,110.64 × 311,572,808.64
  4. Step 4: Simplify right side
    321,984,734.40x = 138,529,978,785,889,136
  5. Step 5: Solve for x
    x = 138,529,978,785,889,136/321,984,734.40
  6. Step 6: Final answer
    x = 430,237,722.43

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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.