Finding the Fourth Proportional to 20,255,750.85, 27,953,010.07 and 10,963,442.68
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Solution
The fourth proportional to 20,255,750.85, 27,953,010.07 and 10,963,442.68 is: 15,129,590.89
Step by Step Solution
- Step 1: Write the proportion equation
20,255,750.85 : 27,953,010.07 = 10,963,442.68 : x - Step 2: Convert to fraction form
20,255,750.85/27,953,010.07 = 10,963,442.68/x - Step 3: Cross multiply
20,255,750.85x = 27,953,010.07 × 10,963,442.68 - Step 4: Simplify right side
20,255,750.85x = 306,461,223,600,286.06 - Step 5: Solve for x
x = 306,461,223,600,286.06/20,255,750.85 - Step 6: Final answer
x = 15,129,590.89
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.