Home / 490,147,215.60-735,220,823.40-486,745,993.20

Finding the Fourth Proportional to 490,147,215.60, 735,220,823.40 and 486,745,993.20

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Solution

The fourth proportional to 490,147,215.60, 735,220,823.40 and 486,745,993.20 is: 730,118,989.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,147,215.60 : 735,220,823.40 = 486,745,993.20 : x
  2. Step 2: Convert to fraction form
    490,147,215.60/735,220,823.40 = 486,745,993.20/x
  3. Step 3: Cross multiply
    490,147,215.60x = 735,220,823.40 × 486,745,993.20
  4. Step 4: Simplify right side
    490,147,215.60x = 357,865,789,907,154,752
  5. Step 5: Solve for x
    x = 357,865,789,907,154,752/490,147,215.60
  6. Step 6: Final answer
    x = 730,118,989.80

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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.