Home / 646,953,845.40-969,443,287.38-384,120,824.90

Finding the Fourth Proportional to 646,953,845.40, 969,443,287.38 and 384,120,824.90

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Solution

The fourth proportional to 646,953,845.40, 969,443,287.38 and 384,120,824.90 is: 575,594,932.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,953,845.40 : 969,443,287.38 = 384,120,824.90 : x
  2. Step 2: Convert to fraction form
    646,953,845.40/969,443,287.38 = 384,120,824.90/x
  3. Step 3: Cross multiply
    646,953,845.40x = 969,443,287.38 × 384,120,824.90
  4. Step 4: Simplify right side
    646,953,845.40x = 372,383,355,237,326,144
  5. Step 5: Solve for x
    x = 372,383,355,237,326,144/646,953,845.40
  6. Step 6: Final answer
    x = 575,594,932.91

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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.