Home / 291,481,331.10-437,166,009.45-87,016,076.70

Finding the Fourth Proportional to 291,481,331.10, 437,166,009.45 and 87,016,076.70

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Solution

The fourth proportional to 291,481,331.10, 437,166,009.45 and 87,016,076.70 is: 130,507,401.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,481,331.10 : 437,166,009.45 = 87,016,076.70 : x
  2. Step 2: Convert to fraction form
    291,481,331.10/437,166,009.45 = 87,016,076.70/x
  3. Step 3: Cross multiply
    291,481,331.10x = 437,166,009.45 × 87,016,076.70
  4. Step 4: Simplify right side
    291,481,331.10x = 38,040,471,008,934,128
  5. Step 5: Solve for x
    x = 38,040,471,008,934,128/291,481,331.10
  6. Step 6: Final answer
    x = 130,507,401.16

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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.