Finding the Fourth Proportional to 8,201,886.80, 12,302,830.20 and 5,370,731.60
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Solution
The fourth proportional to 8,201,886.80, 12,302,830.20 and 5,370,731.60 is: 8,056,097.40
Step by Step Solution
- Step 1: Write the proportion equation
8,201,886.80 : 12,302,830.20 = 5,370,731.60 : x - Step 2: Convert to fraction form
8,201,886.80/12,302,830.20 = 5,370,731.60/x - Step 3: Cross multiply
8,201,886.80x = 12,302,830.20 × 5,370,731.60 - Step 4: Simplify right side
8,201,886.80x = 66,075,198,924,574.31 - Step 5: Solve for x
x = 66,075,198,924,574.31/8,201,886.80 - Step 6: Final answer
x = 8,056,097.40
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1.5x scale
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.