Finding the Fourth Proportional to 19,541,656.80, 29,312,485.20 and 8,194,917.60
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Solution
The fourth proportional to 19,541,656.80, 29,312,485.20 and 8,194,917.60 is: 12,292,376.40
Step by Step Solution
- Step 1: Write the proportion equation
19,541,656.80 : 29,312,485.20 = 8,194,917.60 : x - Step 2: Convert to fraction form
19,541,656.80/29,312,485.20 = 8,194,917.60/x - Step 3: Cross multiply
19,541,656.80x = 29,312,485.20 × 8,194,917.60 - Step 4: Simplify right side
19,541,656.80x = 240,213,400,865,219.50 - Step 5: Solve for x
x = 240,213,400,865,219.50/19,541,656.80 - Step 6: Final answer
x = 12,292,376.40
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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.