Finding the Fourth Proportional to 15,615,222,625.20, 21,548,402,839.68 and 8,478,473,092.80
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Solution
The fourth proportional to 15,615,222,625.20, 21,548,402,839.68 and 8,478,473,092.80 is: 11,699,964,710.99
Step by Step Solution
- Step 1: Write the proportion equation
15,615,222,625.20 : 21,548,402,839.68 = 8,478,473,092.80 : x - Step 2: Convert to fraction form
15,615,222,625.20/21,548,402,839.68 = 8,478,473,092.80/x - Step 3: Cross multiply
15,615,222,625.20x = 21,548,402,839.68 × 8,478,473,092.80 - Step 4: Simplify right side
15,615,222,625.20x = 182,697,553,669,042,012,160 - Step 5: Solve for x
x = 182,697,553,669,042,012,160/15,615,222,625.20 - Step 6: Final answer
x = 11,699,964,710.99
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1.5x scale
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.