Finding the Fourth Proportional to 90,640,314.36, 125,083,653.30 and 49,387,207.14
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Solution
The fourth proportional to 90,640,314.36, 125,083,653.30 and 49,387,207.14 is: 68,154,356.47
Step by Step Solution
- Step 1: Write the proportion equation
90,640,314.36 : 125,083,653.30 = 49,387,207.14 : x - Step 2: Convert to fraction form
90,640,314.36/125,083,653.30 = 49,387,207.14/x - Step 3: Cross multiply
90,640,314.36x = 125,083,653.30 × 49,387,207.14 - Step 4: Simplify right side
90,640,314.36x = 6,177,532,295,355,044 - Step 5: Solve for x
x = 6,177,532,295,355,044/90,640,314.36 - Step 6: Final answer
x = 68,154,356.47
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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.