Home / 393,392,399.60-542,952,573.72-234,632,697.68

Finding the Fourth Proportional to 393,392,399.60, 542,952,573.72 and 234,632,697.68

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Solution

The fourth proportional to 393,392,399.60, 542,952,573.72 and 234,632,697.68 is: 323,835,506.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,392,399.60 : 542,952,573.72 = 234,632,697.68 : x
  2. Step 2: Convert to fraction form
    393,392,399.60/542,952,573.72 = 234,632,697.68/x
  3. Step 3: Cross multiply
    393,392,399.60x = 542,952,573.72 × 234,632,697.68
  4. Step 4: Simplify right side
    393,392,399.60x = 127,394,427,084,222,688
  5. Step 5: Solve for x
    x = 127,394,427,084,222,688/393,392,399.60
  6. Step 6: Final answer
    x = 323,835,506.77

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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.