Finding the Fourth Proportional to 10,287,029.70, 15,430,544.55 and 9,342,245.70
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Solution
The fourth proportional to 10,287,029.70, 15,430,544.55 and 9,342,245.70 is: 14,013,368.55
Step by Step Solution
- Step 1: Write the proportion equation
10,287,029.70 : 15,430,544.55 = 9,342,245.70 : x - Step 2: Convert to fraction form
10,287,029.70/15,430,544.55 = 9,342,245.70/x - Step 3: Cross multiply
10,287,029.70x = 15,430,544.55 × 9,342,245.70 - Step 4: Simplify right side
10,287,029.70x = 144,155,938,470,895.94 - Step 5: Solve for x
x = 144,155,938,470,895.94/10,287,029.70 - Step 6: Final answer
x = 14,013,368.55
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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.