Home / 145,481,558.45-200,761,704.88-79,402,530.38

Finding the Fourth Proportional to 145,481,558.45, 200,761,704.88 and 79,402,530.38

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Solution

The fourth proportional to 145,481,558.45, 200,761,704.88 and 79,402,530.38 is: 109,573,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,481,558.45 : 200,761,704.88 = 79,402,530.38 : x
  2. Step 2: Convert to fraction form
    145,481,558.45/200,761,704.88 = 79,402,530.38/x
  3. Step 3: Cross multiply
    145,481,558.45x = 200,761,704.88 × 79,402,530.38
  4. Step 4: Simplify right side
    145,481,558.45x = 15,940,987,370,348,778
  5. Step 5: Solve for x
    x = 15,940,987,370,348,778/145,481,558.45
  6. Step 6: Final answer
    x = 109,573,938.72

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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.