Finding the Fourth Proportional to 6,838,340.70, 10,257,511.05 and 6,523,412.70
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Solution
The fourth proportional to 6,838,340.70, 10,257,511.05 and 6,523,412.70 is: 9,785,119.05
Step by Step Solution
- Step 1: Write the proportion equation
6,838,340.70 : 10,257,511.05 = 6,523,412.70 : x - Step 2: Convert to fraction form
6,838,340.70/10,257,511.05 = 6,523,412.70/x - Step 3: Cross multiply
6,838,340.70x = 10,257,511.05 × 6,523,412.70 - Step 4: Simplify right side
6,838,340.70x = 66,913,977,853,960.34 - Step 5: Solve for x
x = 66,913,977,853,960.34/6,838,340.70 - Step 6: Final answer
x = 9,785,119.05
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Double scale
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Similar ratio
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1.5x scale
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.