Home / 313,372,952.80-470,213,912.40-140,971,775.20

Finding the Fourth Proportional to 313,372,952.80, 470,213,912.40 and 140,971,775.20

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Solution

The fourth proportional to 313,372,952.80, 470,213,912.40 and 140,971,775.20 is: 211,527,157.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,372,952.80 : 470,213,912.40 = 140,971,775.20 : x
  2. Step 2: Convert to fraction form
    313,372,952.80/470,213,912.40 = 140,971,775.20/x
  3. Step 3: Cross multiply
    313,372,952.80x = 470,213,912.40 × 140,971,775.20
  4. Step 4: Simplify right side
    313,372,952.80x = 66,286,889,954,765,280
  5. Step 5: Solve for x
    x = 66,286,889,954,765,280/313,372,952.80
  6. Step 6: Final answer
    x = 211,527,157.54

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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.