Finding the Fourth Proportional to 216,878,099.90, 299,283,383.63 and 117,756,578.62
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Solution
The fourth proportional to 216,878,099.90, 299,283,383.63 and 117,756,578.62 is: 162,499,520.75
Step by Step Solution
- Step 1: Write the proportion equation
216,878,099.90 : 299,283,383.63 = 117,756,578.62 : x - Step 2: Convert to fraction form
216,878,099.90/299,283,383.63 = 117,756,578.62/x - Step 3: Cross multiply
216,878,099.90x = 299,283,383.63 × 117,756,578.62 - Step 4: Simplify right side
216,878,099.90x = 35,242,587,294,085,716 - Step 5: Solve for x
x = 35,242,587,294,085,716/216,878,099.90 - Step 6: Final answer
x = 162,499,520.75
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1.5x scale
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.