Finding the Fourth Proportional to 98,448,183,465.42, 135,783,535,531.05 and 84,738,310,641.84
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Solution
The fourth proportional to 98,448,183,465.42, 135,783,535,531.05 and 84,738,310,641.84 is: 116,874,349,620.87
Step by Step Solution
- Step 1: Write the proportion equation
98,448,183,465.42 : 135,783,535,531.05 = 84,738,310,641.84 : x - Step 2: Convert to fraction form
98,448,183,465.42/135,783,535,531.05 = 84,738,310,641.84/x - Step 3: Cross multiply
98,448,183,465.42x = 135,783,535,531.05 × 84,738,310,641.84 - Step 4: Simplify right side
98,448,183,465.42x = 11,506,067,413,877,433,303,040 - Step 5: Solve for x
x = 11,506,067,413,877,433,303,040/98,448,183,465.42 - Step 6: Final answer
x = 116,874,349,620.87
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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.