Home / 621,158,645.22-930,780,178.47-305,662,491.78

Finding the Fourth Proportional to 621,158,645.22, 930,780,178.47 and 305,662,491.78

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Solution

The fourth proportional to 621,158,645.22, 930,780,178.47 and 305,662,491.78 is: 458,022,424.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,158,645.22 : 930,780,178.47 = 305,662,491.78 : x
  2. Step 2: Convert to fraction form
    621,158,645.22/930,780,178.47 = 305,662,491.78/x
  3. Step 3: Cross multiply
    621,158,645.22x = 930,780,178.47 × 305,662,491.78
  4. Step 4: Simplify right side
    621,158,645.22x = 284,504,588,650,573,280
  5. Step 5: Solve for x
    x = 284,504,588,650,573,280/621,158,645.22
  6. Step 6: Final answer
    x = 458,022,424.45

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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.