Finding the Fourth Proportional to 1,396,560,590.99, 1,927,339,639.36 and 770,027,081.39
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Solution
The fourth proportional to 1,396,560,590.99, 1,927,339,639.36 and 770,027,081.39 is: 1,062,684,803.59
Step by Step Solution
- Step 1: Write the proportion equation
1,396,560,590.99 : 1,927,339,639.36 = 770,027,081.39 : x - Step 2: Convert to fraction form
1,396,560,590.99/1,927,339,639.36 = 770,027,081.39/x - Step 3: Cross multiply
1,396,560,590.99x = 1,927,339,639.36 × 770,027,081.39 - Step 4: Simplify right side
1,396,560,590.99x = 1,484,103,717,332,074,240 - Step 5: Solve for x
x = 1,484,103,717,332,074,240/1,396,560,590.99 - Step 6: Final answer
x = 1,062,684,803.59
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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.