Finding the Fourth Proportional to 371,718,924.21, 512,973,137.55 and 204,472,318.91
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Solution
The fourth proportional to 371,718,924.21, 512,973,137.55 and 204,472,318.91 is: 282,172,362.34
Step by Step Solution
- Step 1: Write the proportion equation
371,718,924.21 : 512,973,137.55 = 204,472,318.91 : x - Step 2: Convert to fraction form
371,718,924.21/512,973,137.55 = 204,472,318.91/x - Step 3: Cross multiply
371,718,924.21x = 512,973,137.55 × 204,472,318.91 - Step 4: Simplify right side
371,718,924.21x = 104,888,806,970,822,032 - Step 5: Solve for x
x = 104,888,806,970,822,032/371,718,924.21 - Step 6: Final answer
x = 282,172,362.34
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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.