Home / 390,024,007.60-585,122,616.60-131,231,923.60

Finding the Fourth Proportional to 390,024,007.60, 585,122,616.60 and 131,231,923.60

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Solution

The fourth proportional to 390,024,007.60, 585,122,616.60 and 131,231,923.60 is: 196,877,025.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,024,007.60 : 585,122,616.60 = 131,231,923.60 : x
  2. Step 2: Convert to fraction form
    390,024,007.60/585,122,616.60 = 131,231,923.60/x
  3. Step 3: Cross multiply
    390,024,007.60x = 585,122,616.60 × 131,231,923.60
  4. Step 4: Simplify right side
    390,024,007.60x = 76,786,766,518,283,296
  5. Step 5: Solve for x
    x = 76,786,766,518,283,296/390,024,007.60
  6. Step 6: Final answer
    x = 196,877,025.57

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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.