Finding the Fourth Proportional to 13,294,523.80, 19,941,785.70 and 4,319,075.80
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Solution
The fourth proportional to 13,294,523.80, 19,941,785.70 and 4,319,075.80 is: 6,478,613.70
Step by Step Solution
- Step 1: Write the proportion equation
13,294,523.80 : 19,941,785.70 = 4,319,075.80 : x - Step 2: Convert to fraction form
13,294,523.80/19,941,785.70 = 4,319,075.80/x - Step 3: Cross multiply
13,294,523.80x = 19,941,785.70 × 4,319,075.80 - Step 4: Simplify right side
13,294,523.80x = 86,130,084,025,656.05 - Step 5: Solve for x
x = 86,130,084,025,656.05/13,294,523.80 - Step 6: Final answer
x = 6,478,613.70
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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.