Finding the Fourth Proportional to 368,605,878.62, 508,672,673.57 and 201,342,075.78
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Solution
The fourth proportional to 368,605,878.62, 508,672,673.57 and 201,342,075.78 is: 277,850,186.15
Step by Step Solution
- Step 1: Write the proportion equation
368,605,878.62 : 508,672,673.57 = 201,342,075.78 : x - Step 2: Convert to fraction form
368,605,878.62/508,672,673.57 = 201,342,075.78/x - Step 3: Cross multiply
368,605,878.62x = 508,672,673.57 × 201,342,075.78 - Step 4: Simplify right side
368,605,878.62x = 102,417,211,989,146,144 - Step 5: Solve for x
x = 102,417,211,989,146,144/368,605,878.62 - Step 6: Final answer
x = 277,850,186.15
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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.