Finding the Fourth Proportional to 10,915,520.80, 15,063,154.74 and 6,020,637.75
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Solution
The fourth proportional to 10,915,520.80, 15,063,154.74 and 6,020,637.75 is: 8,308,334.50
Step by Step Solution
- Step 1: Write the proportion equation
10,915,520.80 : 15,063,154.74 = 6,020,637.75 : x - Step 2: Convert to fraction form
10,915,520.80/15,063,154.74 = 6,020,637.75/x - Step 3: Cross multiply
10,915,520.80x = 15,063,154.74 × 6,020,637.75 - Step 4: Simplify right side
10,915,520.80x = 90,689,798,061,735.44 - Step 5: Solve for x
x = 90,689,798,061,735.44/10,915,520.80 - Step 6: Final answer
x = 8,308,334.50
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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.