Finding the Fourth Proportional to 18,213,312.96, 25,134,878.88 and 10,065,075.84
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Solution
The fourth proportional to 18,213,312.96, 25,134,878.88 and 10,065,075.84 is: 13,890,084.84
Step by Step Solution
- Step 1: Write the proportion equation
18,213,312.96 : 25,134,878.88 = 10,065,075.84 : x - Step 2: Convert to fraction form
18,213,312.96/25,134,878.88 = 10,065,075.84/x - Step 3: Cross multiply
18,213,312.96x = 25,134,878.88 × 10,065,075.84 - Step 4: Simplify right side
18,213,312.96x = 252,984,462,156,414.25 - Step 5: Solve for x
x = 252,984,462,156,414.25/18,213,312.96 - Step 6: Final answer
x = 13,890,084.84
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1.5x scale
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.