Finding the Fourth Proportional to 5,130,487.12, 7,079,962.88 and 2,807,370.08
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Solution
The fourth proportional to 5,130,487.12, 7,079,962.88 and 2,807,370.08 is: 3,874,110.88
Step by Step Solution
- Step 1: Write the proportion equation
5,130,487.12 : 7,079,962.88 = 2,807,370.08 : x - Step 2: Convert to fraction form
5,130,487.12/7,079,962.88 = 2,807,370.08/x - Step 3: Cross multiply
5,130,487.12x = 7,079,962.88 × 2,807,370.08 - Step 4: Simplify right side
5,130,487.12x = 19,876,075,956,822.63 - Step 5: Solve for x
x = 19,876,075,956,822.63/5,130,487.12 - Step 6: Final answer
x = 3,874,110.88
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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.