Finding the Fourth Proportional to 20,421,125,270.08, 28,181,152,926.95 and 11,033,751,446.09
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Solution
The fourth proportional to 20,421,125,270.08, 28,181,152,926.95 and 11,033,751,446.09 is: 15,226,577,024.91
Step by Step Solution
- Step 1: Write the proportion equation
20,421,125,270.08 : 28,181,152,926.95 = 11,033,751,446.09 : x - Step 2: Convert to fraction form
20,421,125,270.08/28,181,152,926.95 = 11,033,751,446.09/x - Step 3: Cross multiply
20,421,125,270.08x = 28,181,152,926.95 × 11,033,751,446.09 - Step 4: Simplify right side
20,421,125,270.08x = 310,943,836,860,218,015,744 - Step 5: Solve for x
x = 310,943,836,860,218,015,744/20,421,125,270.08 - Step 6: Final answer
x = 15,226,577,024.91
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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.