Home / 321,019,729.40-481,529,594.10-210,054,848.60

Finding the Fourth Proportional to 321,019,729.40, 481,529,594.10 and 210,054,848.60

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Solution

The fourth proportional to 321,019,729.40, 481,529,594.10 and 210,054,848.60 is: 315,082,272.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,019,729.40 : 481,529,594.10 = 210,054,848.60 : x
  2. Step 2: Convert to fraction form
    321,019,729.40/481,529,594.10 = 210,054,848.60/x
  3. Step 3: Cross multiply
    321,019,729.40x = 481,529,594.10 × 210,054,848.60
  4. Step 4: Simplify right side
    321,019,729.40x = 101,147,625,985,094,960
  5. Step 5: Solve for x
    x = 101,147,625,985,094,960/321,019,729.40
  6. Step 6: Final answer
    x = 315,082,272.90

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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.