Finding the Fourth Proportional to 7,528,863.28, 10,389,888.48 and 4,091,122.84
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Solution
The fourth proportional to 7,528,863.28, 10,389,888.48 and 4,091,122.84 is: 5,645,780.58
Step by Step Solution
- Step 1: Write the proportion equation
7,528,863.28 : 10,389,888.48 = 4,091,122.84 : x - Step 2: Convert to fraction form
7,528,863.28/10,389,888.48 = 4,091,122.84/x - Step 3: Cross multiply
7,528,863.28x = 10,389,888.48 × 4,091,122.84 - Step 4: Simplify right side
7,528,863.28x = 42,506,310,065,580.88 - Step 5: Solve for x
x = 42,506,310,065,580.88/7,528,863.28 - Step 6: Final answer
x = 5,645,780.58
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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.