Home / 272,665,584.36-409,038,739.01-100,128,945.81

Finding the Fourth Proportional to 272,665,584.36, 409,038,739.01 and 100,128,945.81

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Solution

The fourth proportional to 272,665,584.36, 409,038,739.01 and 100,128,945.81 is: 150,208,240.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,665,584.36 : 409,038,739.01 = 100,128,945.81 : x
  2. Step 2: Convert to fraction form
    272,665,584.36/409,038,739.01 = 100,128,945.81/x
  3. Step 3: Cross multiply
    272,665,584.36x = 409,038,739.01 × 100,128,945.81
  4. Step 4: Simplify right side
    272,665,584.36x = 40,956,617,732,022,376
  5. Step 5: Solve for x
    x = 40,956,617,732,022,376/272,665,584.36
  6. Step 6: Final answer
    x = 150,208,240.72

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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.