Finding the Fourth Proportional to 7,358,432.70, 11,037,649.05 and 6,238,688.70
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Solution
The fourth proportional to 7,358,432.70, 11,037,649.05 and 6,238,688.70 is: 9,358,033.05
Step by Step Solution
- Step 1: Write the proportion equation
7,358,432.70 : 11,037,649.05 = 6,238,688.70 : x - Step 2: Convert to fraction form
7,358,432.70/11,037,649.05 = 6,238,688.70/x - Step 3: Cross multiply
7,358,432.70x = 11,037,649.05 × 6,238,688.70 - Step 4: Simplify right side
7,358,432.70x = 68,860,456,402,800.74 - Step 5: Solve for x
x = 68,860,456,402,800.74/7,358,432.70 - Step 6: Final answer
x = 9,358,033.05
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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.