Finding the Fourth Proportional to 8,327,476.48, 11,498,430.72 and 6,390,669.28
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Solution
The fourth proportional to 8,327,476.48, 11,498,430.72 and 6,390,669.28 is: 8,824,121.95
Step by Step Solution
- Step 1: Write the proportion equation
8,327,476.48 : 11,498,430.72 = 6,390,669.28 : x - Step 2: Convert to fraction form
8,327,476.48/11,498,430.72 = 6,390,669.28/x - Step 3: Cross multiply
8,327,476.48x = 11,498,430.72 × 6,390,669.28 - Step 4: Simplify right side
8,327,476.48x = 73,482,667,970,512.28 - Step 5: Solve for x
x = 73,482,667,970,512.28/8,327,476.48 - Step 6: Final answer
x = 8,824,121.95
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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.