Finding the Fourth Proportional to 9,072,195,274.80, 13,608,292,912.20 and 8,142,386,101.20
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Solution
The fourth proportional to 9,072,195,274.80, 13,608,292,912.20 and 8,142,386,101.20 is: 12,213,579,151.80
Step by Step Solution
- Step 1: Write the proportion equation
9,072,195,274.80 : 13,608,292,912.20 = 8,142,386,101.20 : x - Step 2: Convert to fraction form
9,072,195,274.80/13,608,292,912.20 = 8,142,386,101.20/x - Step 3: Cross multiply
9,072,195,274.80x = 13,608,292,912.20 × 8,142,386,101.20 - Step 4: Simplify right side
9,072,195,274.80x = 110,803,975,069,355,753,472 - Step 5: Solve for x
x = 110,803,975,069,355,753,472/9,072,195,274.80 - Step 6: Final answer
x = 12,213,579,151.80
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.