Home / 291,345,928.20-437,018,892.30-199,512,923.40

Finding the Fourth Proportional to 291,345,928.20, 437,018,892.30 and 199,512,923.40

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Solution

The fourth proportional to 291,345,928.20, 437,018,892.30 and 199,512,923.40 is: 299,269,385.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,345,928.20 : 437,018,892.30 = 199,512,923.40 : x
  2. Step 2: Convert to fraction form
    291,345,928.20/437,018,892.30 = 199,512,923.40/x
  3. Step 3: Cross multiply
    291,345,928.20x = 437,018,892.30 × 199,512,923.40
  4. Step 4: Simplify right side
    291,345,928.20x = 87,190,916,783,802,752
  5. Step 5: Solve for x
    x = 87,190,916,783,802,752/291,345,928.20
  6. Step 6: Final answer
    x = 299,269,385.10

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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.