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Finding the Fourth Proportional to 201,854,285.70, 278,559,036.30 and 109,034,834.56

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Solution

The fourth proportional to 201,854,285.70, 278,559,036.30 and 109,034,834.56 is: 150,468,137.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,854,285.70 : 278,559,036.30 = 109,034,834.56 : x
  2. Step 2: Convert to fraction form
    201,854,285.70/278,559,036.30 = 109,034,834.56/x
  3. Step 3: Cross multiply
    201,854,285.70x = 278,559,036.30 × 109,034,834.56
  4. Step 4: Simplify right side
    201,854,285.70x = 30,372,638,438,163,536
  5. Step 5: Solve for x
    x = 30,372,638,438,163,536/201,854,285.70
  6. Step 6: Final answer
    x = 150,468,137.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.