Home / 621,015,283.20-930,731,668.20-330,021,811.20

Finding the Fourth Proportional to 621,015,283.20, 930,731,668.20 and 330,021,811.20

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Solution

The fourth proportional to 621,015,283.20, 930,731,668.20 and 330,021,811.20 is: 494,612,224.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,015,283.20 : 930,731,668.20 = 330,021,811.20 : x
  2. Step 2: Convert to fraction form
    621,015,283.20/930,731,668.20 = 330,021,811.20/x
  3. Step 3: Cross multiply
    621,015,283.20x = 930,731,668.20 × 330,021,811.20
  4. Step 4: Simplify right side
    621,015,283.20x = 307,161,750,880,561,472
  5. Step 5: Solve for x
    x = 307,161,750,880,561,472/621,015,283.20
  6. Step 6: Final answer
    x = 494,612,224.84

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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.