Finding the Fourth Proportional to 289,759,726.44, 399,736,514.70 and 172,218,254.76
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Solution
The fourth proportional to 289,759,726.44, 399,736,514.70 and 172,218,254.76 is: 237,582,792.38
Step by Step Solution
- Step 1: Write the proportion equation
289,759,726.44 : 399,736,514.70 = 172,218,254.76 : x - Step 2: Convert to fraction form
289,759,726.44/399,736,514.70 = 172,218,254.76/x - Step 3: Cross multiply
289,759,726.44x = 399,736,514.70 × 172,218,254.76 - Step 4: Simplify right side
289,759,726.44x = 68,841,924,925,479,080 - Step 5: Solve for x
x = 68,841,924,925,479,080/289,759,726.44 - Step 6: Final answer
x = 237,582,792.38
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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.