Finding the Fourth Proportional to 118,269,358.47, 163,209,995.42 and 66,059,136.63
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Solution
The fourth proportional to 118,269,358.47, 163,209,995.42 and 66,059,136.63 is: 91,160,648.25
Step by Step Solution
- Step 1: Write the proportion equation
118,269,358.47 : 163,209,995.42 = 66,059,136.63 : x - Step 2: Convert to fraction form
118,269,358.47/163,209,995.42 = 66,059,136.63/x - Step 3: Cross multiply
118,269,358.47x = 163,209,995.42 × 66,059,136.63 - Step 4: Simplify right side
118,269,358.47x = 10,781,511,386,501,158 - Step 5: Solve for x
x = 10,781,511,386,501,158/118,269,358.47 - Step 6: Final answer
x = 91,160,648.25
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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.