Home / 389,642,674.56-584,491,283.72-156,473,351.32

Finding the Fourth Proportional to 389,642,674.56, 584,491,283.72 and 156,473,351.32

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Solution

The fourth proportional to 389,642,674.56, 584,491,283.72 and 156,473,351.32 is: 234,720,978.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,642,674.56 : 584,491,283.72 = 156,473,351.32 : x
  2. Step 2: Convert to fraction form
    389,642,674.56/584,491,283.72 = 156,473,351.32/x
  3. Step 3: Cross multiply
    389,642,674.56x = 584,491,283.72 × 156,473,351.32
  4. Step 4: Simplify right side
    389,642,674.56x = 91,457,309,980,997,360
  5. Step 5: Solve for x
    x = 91,457,309,980,997,360/389,642,674.56
  6. Step 6: Final answer
    x = 234,720,978.87

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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.