Finding the Fourth Proportional to 7,876,423,928.68, 10,872,811,824.42 and 4,907,666,956.84
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Solution
The fourth proportional to 7,876,423,928.68, 10,872,811,824.42 and 4,907,666,956.84 is: 6,774,665,736.86
Step by Step Solution
- Step 1: Write the proportion equation
7,876,423,928.68 : 10,872,811,824.42 = 4,907,666,956.84 : x - Step 2: Convert to fraction form
7,876,423,928.68/10,872,811,824.42 = 4,907,666,956.84/x - Step 3: Cross multiply
7,876,423,928.68x = 10,872,811,824.42 × 4,907,666,956.84 - Step 4: Simplify right side
7,876,423,928.68x = 53,360,139,318,645,268,480 - Step 5: Solve for x
x = 53,360,139,318,645,268,480/7,876,423,928.68 - Step 6: Final answer
x = 6,774,665,736.86
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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.