Finding the Fourth Proportional to 216,963,531.48, 299,411,870.64 and 117,846,214.38
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Solution
The fourth proportional to 216,963,531.48, 299,411,870.64 and 117,846,214.38 is: 162,628,969.28
Step by Step Solution
- Step 1: Write the proportion equation
216,963,531.48 : 299,411,870.64 = 117,846,214.38 : x - Step 2: Convert to fraction form
216,963,531.48/299,411,870.64 = 117,846,214.38/x - Step 3: Cross multiply
216,963,531.48x = 299,411,870.64 × 117,846,214.38 - Step 4: Simplify right side
216,963,531.48x = 35,284,555,495,358,264 - Step 5: Solve for x
x = 35,284,555,495,358,264/216,963,531.48 - Step 6: Final answer
x = 162,628,969.28
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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.