Finding the Fourth Proportional to 10,202,282.70, 15,303,424.05 and 8,970,564.30
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Solution
The fourth proportional to 10,202,282.70, 15,303,424.05 and 8,970,564.30 is: 13,455,846.45
Step by Step Solution
- Step 1: Write the proportion equation
10,202,282.70 : 15,303,424.05 = 8,970,564.30 : x - Step 2: Convert to fraction form
10,202,282.70/15,303,424.05 = 8,970,564.30/x - Step 3: Cross multiply
10,202,282.70x = 15,303,424.05 × 8,970,564.30 - Step 4: Simplify right side
10,202,282.70x = 137,280,349,450,691.44 - Step 5: Solve for x
x = 137,280,349,450,691.44/10,202,282.70 - Step 6: Final answer
x = 13,455,846.45
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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.