Finding the Fourth Proportional to 399,906,583.53, 551,648,921.64 and 232,624,013.01
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Solution
The fourth proportional to 399,906,583.53, 551,648,921.64 and 232,624,013.01 is: 320,891,906.28
Step by Step Solution
- Step 1: Write the proportion equation
399,906,583.53 : 551,648,921.64 = 232,624,013.01 : x - Step 2: Convert to fraction form
399,906,583.53/551,648,921.64 = 232,624,013.01/x - Step 3: Cross multiply
399,906,583.53x = 551,648,921.64 × 232,624,013.01 - Step 4: Simplify right side
399,906,583.53x = 128,326,785,924,535,824 - Step 5: Solve for x
x = 128,326,785,924,535,824/399,906,583.53 - Step 6: Final answer
x = 320,891,906.28
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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.