Finding the Fourth Proportional to 120,299,302.58, 180,487,815.57 and 55,645,519.19
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Solution
The fourth proportional to 120,299,302.58, 180,487,815.57 and 55,645,519.19 is: 83,486,254.61
Step by Step Solution
- Step 1: Write the proportion equation
120,299,302.58 : 180,487,815.57 = 55,645,519.19 : x - Step 2: Convert to fraction form
120,299,302.58/180,487,815.57 = 55,645,519.19/x - Step 3: Cross multiply
120,299,302.58x = 180,487,815.57 × 55,645,519.19 - Step 4: Simplify right side
120,299,302.58x = 10,043,338,203,959,176 - Step 5: Solve for x
x = 10,043,338,203,959,176/120,299,302.58 - Step 6: Final answer
x = 83,486,254.61
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.