Home / 278,701,333.22-384,632,346.72-153,275,631.41

Finding the Fourth Proportional to 278,701,333.22, 384,632,346.72 and 153,275,631.41

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Solution

The fourth proportional to 278,701,333.22, 384,632,346.72 and 153,275,631.41 is: 211,533,849.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,701,333.22 : 384,632,346.72 = 153,275,631.41 : x
  2. Step 2: Convert to fraction form
    278,701,333.22/384,632,346.72 = 153,275,631.41/x
  3. Step 3: Cross multiply
    278,701,333.22x = 384,632,346.72 × 153,275,631.41
  4. Step 4: Simplify right side
    278,701,333.22x = 58,954,765,805,752,872
  5. Step 5: Solve for x
    x = 58,954,765,805,752,872/278,701,333.22
  6. Step 6: Final answer
    x = 211,533,849.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.