Finding the Fourth Proportional to 7,866,266.78, 10,855,651.12 and 4,428,630.84
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Solution
The fourth proportional to 7,866,266.78, 10,855,651.12 and 4,428,630.84 is: 6,111,624.83
Step by Step Solution
- Step 1: Write the proportion equation
7,866,266.78 : 10,855,651.12 = 4,428,630.84 : x - Step 2: Convert to fraction form
7,866,266.78/10,855,651.12 = 4,428,630.84/x - Step 3: Cross multiply
7,866,266.78x = 10,855,651.12 × 4,428,630.84 - Step 4: Simplify right side
7,866,266.78x = 48,075,671,338,312.54 - Step 5: Solve for x
x = 48,075,671,338,312.54/7,866,266.78 - Step 6: Final answer
x = 6,111,624.83
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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.