Home / 355,023,021.60-532,534,532.40-209,526,285.60

Finding the Fourth Proportional to 355,023,021.60, 532,534,532.40 and 209,526,285.60

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Solution

The fourth proportional to 355,023,021.60, 532,534,532.40 and 209,526,285.60 is: 314,289,428.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,023,021.60 : 532,534,532.40 = 209,526,285.60 : x
  2. Step 2: Convert to fraction form
    355,023,021.60/532,534,532.40 = 209,526,285.60/x
  3. Step 3: Cross multiply
    355,023,021.60x = 532,534,532.40 × 209,526,285.60
  4. Step 4: Simplify right side
    355,023,021.60x = 111,579,982,527,504,848
  5. Step 5: Solve for x
    x = 111,579,982,527,504,848/355,023,021.60
  6. Step 6: Final answer
    x = 314,289,428.40

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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.