Finding the Fourth Proportional to 354,881,908.46, 489,755,836.14 and 213,797,541.62
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Solution
The fourth proportional to 354,881,908.46, 489,755,836.14 and 213,797,541.62 is: 295,051,934.92
Step by Step Solution
- Step 1: Write the proportion equation
354,881,908.46 : 489,755,836.14 = 213,797,541.62 : x - Step 2: Convert to fraction form
354,881,908.46/489,755,836.14 = 213,797,541.62/x - Step 3: Cross multiply
354,881,908.46x = 489,755,836.14 × 213,797,541.62 - Step 4: Simplify right side
354,881,908.46x = 104,708,593,760,779,552 - Step 5: Solve for x
x = 104,708,593,760,779,552/354,881,908.46 - Step 6: Final answer
x = 295,051,934.92
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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.