Finding the Fourth Proportional to 120,299,284.08, 180,487,787.69 and 55,645,500.62
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Solution
The fourth proportional to 120,299,284.08, 180,487,787.69 and 55,645,500.62 is: 83,486,226.70
Step by Step Solution
- Step 1: Write the proportion equation
120,299,284.08 : 180,487,787.69 = 55,645,500.62 : x - Step 2: Convert to fraction form
120,299,284.08/180,487,787.69 = 55,645,500.62/x - Step 3: Cross multiply
120,299,284.08x = 180,487,787.69 × 55,645,500.62 - Step 4: Simplify right side
120,299,284.08x = 10,043,333,302,396,656 - Step 5: Solve for x
x = 10,043,333,302,396,656/120,299,284.08 - Step 6: Final answer
x = 83,486,226.70
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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.