Finding the Fourth Proportional to 7,169,416.90, 10,754,125.35 and 6,572,220.10
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Solution
The fourth proportional to 7,169,416.90, 10,754,125.35 and 6,572,220.10 is: 9,858,330.15
Step by Step Solution
- Step 1: Write the proportion equation
7,169,416.90 : 10,754,125.35 = 6,572,220.10 : x - Step 2: Convert to fraction form
7,169,416.90/10,754,125.35 = 6,572,220.10/x - Step 3: Cross multiply
7,169,416.90x = 10,754,125.35 × 6,572,220.10 - Step 4: Simplify right side
7,169,416.90x = 70,678,478,783,189.53 - Step 5: Solve for x
x = 70,678,478,783,189.53/7,169,416.90 - Step 6: Final answer
x = 9,858,330.15
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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.