Finding the Fourth Proportional to 11,431,440.23, 15,768,211.75 and 6,781,933.51
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Solution
The fourth proportional to 11,431,440.23, 15,768,211.75 and 6,781,933.51 is: 9,354,811.07
Step by Step Solution
- Step 1: Write the proportion equation
11,431,440.23 : 15,768,211.75 = 6,781,933.51 : x - Step 2: Convert to fraction form
11,431,440.23/15,768,211.75 = 6,781,933.51/x - Step 3: Cross multiply
11,431,440.23x = 15,768,211.75 × 6,781,933.51 - Step 4: Simplify right side
11,431,440.23x = 106,938,963,603,725.39 - Step 5: Solve for x
x = 106,938,963,603,725.39/11,431,440.23 - Step 6: Final answer
x = 9,354,811.07
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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.