Home / 87,018,362.70-130,622,022.45-54,706,749.90

Finding the Fourth Proportional to 87,018,362.70, 130,622,022.45 and 54,706,749.90

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Solution

The fourth proportional to 87,018,362.70, 130,622,022.45 and 54,706,749.90 is: 82,119,521.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,018,362.70 : 130,622,022.45 = 54,706,749.90 : x
  2. Step 2: Convert to fraction form
    87,018,362.70/130,622,022.45 = 54,706,749.90/x
  3. Step 3: Cross multiply
    87,018,362.70x = 130,622,022.45 × 54,706,749.90
  4. Step 4: Simplify right side
    87,018,362.70x = 7,145,906,313,604,335
  5. Step 5: Solve for x
    x = 7,145,906,313,604,335/87,018,362.70
  6. Step 6: Final answer
    x = 82,119,521.58

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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.