Finding the Fourth Proportional to 7,196,961.80, 10,795,442.70 and 1,878,177.80
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Solution
The fourth proportional to 7,196,961.80, 10,795,442.70 and 1,878,177.80 is: 2,817,266.70
Step by Step Solution
- Step 1: Write the proportion equation
7,196,961.80 : 10,795,442.70 = 1,878,177.80 : x - Step 2: Convert to fraction form
7,196,961.80/10,795,442.70 = 1,878,177.80/x - Step 3: Cross multiply
7,196,961.80x = 10,795,442.70 × 1,878,177.80 - Step 4: Simplify right side
7,196,961.80x = 20,275,760,820,312.06 - Step 5: Solve for x
x = 20,275,760,820,312.06/7,196,961.80 - Step 6: Final answer
x = 2,817,266.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.