Finding the Fourth Proportional to 371,908,323.89, 513,218,075.14 and 202,363,261.68
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Solution
The fourth proportional to 371,908,323.89, 513,218,075.14 and 202,363,261.68 is: 279,252,915.21
Step by Step Solution
- Step 1: Write the proportion equation
371,908,323.89 : 513,218,075.14 = 202,363,261.68 : x - Step 2: Convert to fraction form
371,908,323.89/513,218,075.14 = 202,363,261.68/x - Step 3: Cross multiply
371,908,323.89x = 513,218,075.14 × 202,363,261.68 - Step 4: Simplify right side
371,908,323.89x = 103,856,483,638,461,728 - Step 5: Solve for x
x = 103,856,483,638,461,728/371,908,323.89 - Step 6: Final answer
x = 279,252,915.21
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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.