Finding the Fourth Proportional to 112,544,128.08, 155,310,896.79 and 61,035,904.08
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Solution
The fourth proportional to 112,544,128.08, 155,310,896.79 and 61,035,904.08 is: 84,229,547.65
Step by Step Solution
- Step 1: Write the proportion equation
112,544,128.08 : 155,310,896.79 = 61,035,904.08 : x - Step 2: Convert to fraction form
112,544,128.08/155,310,896.79 = 61,035,904.08/x - Step 3: Cross multiply
112,544,128.08x = 155,310,896.79 × 61,035,904.08 - Step 4: Simplify right side
112,544,128.08x = 9,479,540,999,053,220 - Step 5: Solve for x
x = 9,479,540,999,053,220/112,544,128.08 - Step 6: Final answer
x = 84,229,547.65
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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.