Finding the Fourth Proportional to 319,421,118.06, 440,802,470.88 and 172,743,402.06
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Solution
The fourth proportional to 319,421,118.06, 440,802,470.88 and 172,743,402.06 is: 238,386,613.00
Step by Step Solution
- Step 1: Write the proportion equation
319,421,118.06 : 440,802,470.88 = 172,743,402.06 : x - Step 2: Convert to fraction form
319,421,118.06/440,802,470.88 = 172,743,402.06/x - Step 3: Cross multiply
319,421,118.06x = 440,802,470.88 × 172,743,402.06 - Step 4: Simplify right side
319,421,118.06x = 76,145,718,456,265,280 - Step 5: Solve for x
x = 76,145,718,456,265,280/319,421,118.06 - Step 6: Final answer
x = 238,386,613.00
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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.