Finding the Fourth Proportional to 135,864,580.80, 203,809,312.80 and 55,068,830.40
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Solution
The fourth proportional to 135,864,580.80, 203,809,312.80 and 55,068,830.40 is: 82,608,288.45
Step by Step Solution
- Step 1: Write the proportion equation
135,864,580.80 : 203,809,312.80 = 55,068,830.40 : x - Step 2: Convert to fraction form
135,864,580.80/203,809,312.80 = 55,068,830.40/x - Step 3: Cross multiply
135,864,580.80x = 203,809,312.80 × 55,068,830.40 - Step 4: Simplify right side
135,864,580.80x = 11,223,540,480,523,750 - Step 5: Solve for x
x = 11,223,540,480,523,750/135,864,580.80 - Step 6: Final answer
x = 82,608,288.45
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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.