Finding the Fourth Proportional to 561,366,862.26, 774,924,802.57 and 349,778,232.70
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Solution
The fourth proportional to 561,366,862.26, 774,924,802.57 and 349,778,232.70 is: 482,842,586.80
Step by Step Solution
- Step 1: Write the proportion equation
561,366,862.26 : 774,924,802.57 = 349,778,232.70 : x - Step 2: Convert to fraction form
561,366,862.26/774,924,802.57 = 349,778,232.70/x - Step 3: Cross multiply
561,366,862.26x = 774,924,802.57 × 349,778,232.70 - Step 4: Simplify right side
561,366,862.26x = 271,051,827,918,331,040 - Step 5: Solve for x
x = 271,051,827,918,331,040/561,366,862.26 - Step 6: Final answer
x = 482,842,586.80
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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.