Home / 194,052,002.80-291,078,004.20-139,349,009.20

Finding the Fourth Proportional to 194,052,002.80, 291,078,004.20 and 139,349,009.20

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Solution

The fourth proportional to 194,052,002.80, 291,078,004.20 and 139,349,009.20 is: 209,023,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,052,002.80 : 291,078,004.20 = 139,349,009.20 : x
  2. Step 2: Convert to fraction form
    194,052,002.80/291,078,004.20 = 139,349,009.20/x
  3. Step 3: Cross multiply
    194,052,002.80x = 291,078,004.20 × 139,349,009.20
  4. Step 4: Simplify right side
    194,052,002.80x = 40,561,431,485,183,432
  5. Step 5: Solve for x
    x = 40,561,431,485,183,432/194,052,002.80
  6. Step 6: Final answer
    x = 209,023,513.80

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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.