Finding the Fourth Proportional to 354,881,849.02, 489,755,754.42 and 213,797,482.12
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Solution
The fourth proportional to 354,881,849.02, 489,755,754.42 and 213,797,482.12 is: 295,051,853.00
Step by Step Solution
- Step 1: Write the proportion equation
354,881,849.02 : 489,755,754.42 = 213,797,482.12 : x - Step 2: Convert to fraction form
354,881,849.02/489,755,754.42 = 213,797,482.12/x - Step 3: Cross multiply
354,881,849.02x = 489,755,754.42 × 213,797,482.12 - Step 4: Simplify right side
354,881,849.02x = 104,708,547,148,777,072 - Step 5: Solve for x
x = 104,708,547,148,777,072/354,881,849.02 - Step 6: Final answer
x = 295,051,853.00
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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.