Home / 354,319,425.60-531,479,138.40-320,307,201.60

Finding the Fourth Proportional to 354,319,425.60, 531,479,138.40 and 320,307,201.60

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Solution

The fourth proportional to 354,319,425.60, 531,479,138.40 and 320,307,201.60 is: 480,460,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,319,425.60 : 531,479,138.40 = 320,307,201.60 : x
  2. Step 2: Convert to fraction form
    354,319,425.60/531,479,138.40 = 320,307,201.60/x
  3. Step 3: Cross multiply
    354,319,425.60x = 531,479,138.40 × 320,307,201.60
  4. Step 4: Simplify right side
    354,319,425.60x = 170,236,595,529,683,104
  5. Step 5: Solve for x
    x = 170,236,595,529,683,104/354,319,425.60
  6. Step 6: Final answer
    x = 480,460,802.40

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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.