Finding the Fourth Proportional to 79,915,649.63, 110,283,596.69 and 43,246,220.63
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Solution
The fourth proportional to 79,915,649.63, 110,283,596.69 and 43,246,220.63 is: 59,679,784.57
Step by Step Solution
- Step 1: Write the proportion equation
79,915,649.63 : 110,283,596.69 = 43,246,220.63 : x - Step 2: Convert to fraction form
79,915,649.63/110,283,596.69 = 43,246,220.63/x - Step 3: Cross multiply
79,915,649.63x = 110,283,596.69 × 43,246,220.63 - Step 4: Simplify right side
79,915,649.63x = 4,769,348,753,558,029 - Step 5: Solve for x
x = 4,769,348,753,558,029/79,915,649.63 - Step 6: Final answer
x = 59,679,784.57
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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.