Finding the Fourth Proportional to 489,207,461.04, 674,849,031.54 and 290,827,843.26
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Solution
The fourth proportional to 489,207,461.04, 674,849,031.54 and 290,827,843.26 is: 401,189,482.99
Step by Step Solution
- Step 1: Write the proportion equation
489,207,461.04 : 674,849,031.54 = 290,827,843.26 : x - Step 2: Convert to fraction form
489,207,461.04/674,849,031.54 = 290,827,843.26/x - Step 3: Cross multiply
489,207,461.04x = 674,849,031.54 × 290,827,843.26 - Step 4: Simplify right side
489,207,461.04x = 196,264,888,368,877,888 - Step 5: Solve for x
x = 196,264,888,368,877,888/489,207,461.04 - Step 6: Final answer
x = 401,189,482.99
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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.