Home / 309,290,040.50-464,115,969.39-115,335,449.78

Finding the Fourth Proportional to 309,290,040.50, 464,115,969.39 and 115,335,449.78

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Solution

The fourth proportional to 309,290,040.50, 464,115,969.39 and 115,335,449.78 is: 173,070,636.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,290,040.50 : 464,115,969.39 = 115,335,449.78 : x
  2. Step 2: Convert to fraction form
    309,290,040.50/464,115,969.39 = 115,335,449.78/x
  3. Step 3: Cross multiply
    309,290,040.50x = 464,115,969.39 × 115,335,449.78
  4. Step 4: Simplify right side
    309,290,040.50x = 53,529,024,077,355,784
  5. Step 5: Solve for x
    x = 53,529,024,077,355,784/309,290,040.50
  6. Step 6: Final answer
    x = 173,070,636.20

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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.