Home / 419,905,733.40-629,858,600.10-147,178,085.40

Finding the Fourth Proportional to 419,905,733.40, 629,858,600.10 and 147,178,085.40

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Solution

The fourth proportional to 419,905,733.40, 629,858,600.10 and 147,178,085.40 is: 220,767,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,733.40 : 629,858,600.10 = 147,178,085.40 : x
  2. Step 2: Convert to fraction form
    419,905,733.40/629,858,600.10 = 147,178,085.40/x
  3. Step 3: Cross multiply
    419,905,733.40x = 629,858,600.10 × 147,178,085.40
  4. Step 4: Simplify right side
    419,905,733.40x = 92,701,382,835,442,256
  5. Step 5: Solve for x
    x = 92,701,382,835,442,256/419,905,733.40
  6. Step 6: Final answer
    x = 220,767,128.10

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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.