Home / 621,057,809.20-930,795,457.20-330,064,337.20

Finding the Fourth Proportional to 621,057,809.20, 930,795,457.20 and 330,064,337.20

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Solution

The fourth proportional to 621,057,809.20, 930,795,457.20 and 330,064,337.20 is: 494,675,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,057,809.20 : 930,795,457.20 = 330,064,337.20 : x
  2. Step 2: Convert to fraction form
    621,057,809.20/930,795,457.20 = 330,064,337.20/x
  3. Step 3: Cross multiply
    621,057,809.20x = 930,795,457.20 × 330,064,337.20
  4. Step 4: Simplify right side
    621,057,809.20x = 307,222,385,649,488,960
  5. Step 5: Solve for x
    x = 307,222,385,649,488,960/621,057,809.20
  6. Step 6: Final answer
    x = 494,675,988.45

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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.