Finding the Fourth Proportional to 15,407,994.66, 21,263,013.45 and 8,532,468.42
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Solution
The fourth proportional to 15,407,994.66, 21,263,013.45 and 8,532,468.42 is: 11,774,795.80
Step by Step Solution
- Step 1: Write the proportion equation
15,407,994.66 : 21,263,013.45 = 8,532,468.42 : x - Step 2: Convert to fraction form
15,407,994.66/21,263,013.45 = 8,532,468.42/x - Step 3: Cross multiply
15,407,994.66x = 21,263,013.45 × 8,532,468.42 - Step 4: Simplify right side
15,407,994.66x = 181,425,990,776,160.25 - Step 5: Solve for x
x = 181,425,990,776,160.25/15,407,994.66 - Step 6: Final answer
x = 11,774,795.80
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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.