Finding the Fourth Proportional to 13,278,733.60, 19,936,762.80 and 10,442,048.80
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Solution
The fourth proportional to 13,278,733.60, 19,936,762.80 and 10,442,048.80 is: 15,677,748.82
Step by Step Solution
- Step 1: Write the proportion equation
13,278,733.60 : 19,936,762.80 = 10,442,048.80 : x - Step 2: Convert to fraction form
13,278,733.60/19,936,762.80 = 10,442,048.80/x - Step 3: Cross multiply
13,278,733.60x = 19,936,762.80 × 10,442,048.80 - Step 4: Simplify right side
13,278,733.60x = 208,180,650,071,624.66 - Step 5: Solve for x
x = 208,180,650,071,624.66/13,278,733.60 - Step 6: Final answer
x = 15,677,748.82
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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.