Finding the Fourth Proportional to 7,001,319.20, 10,480,983.60 and 4,159,968.80
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Solution
The fourth proportional to 7,001,319.20, 10,480,983.60 and 4,159,968.80 is: 6,227,478.50
Step by Step Solution
- Step 1: Write the proportion equation
7,001,319.20 : 10,480,983.60 = 4,159,968.80 : x - Step 2: Convert to fraction form
7,001,319.20/10,480,983.60 = 4,159,968.80/x - Step 3: Cross multiply
7,001,319.20x = 10,480,983.60 × 4,159,968.80 - Step 4: Simplify right side
7,001,319.20x = 43,600,564,769,311.68 - Step 5: Solve for x
x = 43,600,564,769,311.68/7,001,319.20 - Step 6: Final answer
x = 6,227,478.50
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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.