Home / 291,345,960.20-437,018,940.30-199,512,955.40

Finding the Fourth Proportional to 291,345,960.20, 437,018,940.30 and 199,512,955.40

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Solution

The fourth proportional to 291,345,960.20, 437,018,940.30 and 199,512,955.40 is: 299,269,433.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,345,960.20 : 437,018,940.30 = 199,512,955.40 : x
  2. Step 2: Convert to fraction form
    291,345,960.20/437,018,940.30 = 199,512,955.40/x
  3. Step 3: Cross multiply
    291,345,960.20x = 437,018,940.30 × 199,512,955.40
  4. Step 4: Simplify right side
    291,345,960.20x = 87,190,940,345,029,168
  5. Step 5: Solve for x
    x = 87,190,940,345,029,168/291,345,960.20
  6. Step 6: Final answer
    x = 299,269,433.10

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1.5x scale

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.