Finding the Fourth Proportional to 10,372,638.25, 15,550,899.36 and 6,721,655.59
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Solution
The fourth proportional to 10,372,638.25, 15,550,899.36 and 6,721,655.59 is: 10,077,261.65
Step by Step Solution
- Step 1: Write the proportion equation
10,372,638.25 : 15,550,899.36 = 6,721,655.59 : x - Step 2: Convert to fraction form
10,372,638.25/15,550,899.36 = 6,721,655.59/x - Step 3: Cross multiply
10,372,638.25x = 15,550,899.36 × 6,721,655.59 - Step 4: Simplify right side
10,372,638.25x = 104,527,789,612,671.42 - Step 5: Solve for x
x = 104,527,789,612,671.42/10,372,638.25 - Step 6: Final answer
x = 10,077,261.65
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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.