Home / 313,659,621.60-470,489,432.40-210,347,491.20

Finding the Fourth Proportional to 313,659,621.60, 470,489,432.40 and 210,347,491.20

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Solution

The fourth proportional to 313,659,621.60, 470,489,432.40 and 210,347,491.20 is: 315,521,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,659,621.60 : 470,489,432.40 = 210,347,491.20 : x
  2. Step 2: Convert to fraction form
    313,659,621.60/470,489,432.40 = 210,347,491.20/x
  3. Step 3: Cross multiply
    313,659,621.60x = 470,489,432.40 × 210,347,491.20
  4. Step 4: Simplify right side
    313,659,621.60x = 98,966,271,741,451,984
  5. Step 5: Solve for x
    x = 98,966,271,741,451,984/313,659,621.60
  6. Step 6: Final answer
    x = 315,521,236.80

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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.