Home / 981,033,624.17-1,471,555,749.86-290,946,857.21

Finding the Fourth Proportional to 981,033,624.17, 1,471,555,749.86 and 290,946,857.21

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Solution

The fourth proportional to 981,033,624.17, 1,471,555,749.86 and 290,946,857.21 is: 436,421,861.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,033,624.17 : 1,471,555,749.86 = 290,946,857.21 : x
  2. Step 2: Convert to fraction form
    981,033,624.17/1,471,555,749.86 = 290,946,857.21/x
  3. Step 3: Cross multiply
    981,033,624.17x = 1,471,555,749.86 × 290,946,857.21
  4. Step 4: Simplify right side
    981,033,624.17x = 428,144,520,629,617,152
  5. Step 5: Solve for x
    x = 428,144,520,629,617,152/981,033,624.17
  6. Step 6: Final answer
    x = 436,421,861.68

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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.