Finding the Fourth Proportional to 86,128,876.80, 118,855,184.76 and 48,963,212.64
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Solution
The fourth proportional to 86,128,876.80, 118,855,184.76 and 48,963,212.64 is: 67,567,718.30
Step by Step Solution
- Step 1: Write the proportion equation
86,128,876.80 : 118,855,184.76 = 48,963,212.64 : x - Step 2: Convert to fraction form
86,128,876.80/118,855,184.76 = 48,963,212.64/x - Step 3: Cross multiply
86,128,876.80x = 118,855,184.76 × 48,963,212.64 - Step 4: Simplify right side
86,128,876.80x = 5,819,531,684,770,368 - Step 5: Solve for x
x = 5,819,531,684,770,368/86,128,876.80 - Step 6: Final answer
x = 67,567,718.30
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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.