Finding the Fourth Proportional to 364,831,639.20, 547,340,770.80 and 257,336,215.20
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Solution
The fourth proportional to 364,831,639.20, 547,340,770.80 and 257,336,215.20 is: 386,070,140.99
Step by Step Solution
- Step 1: Write the proportion equation
364,831,639.20 : 547,340,770.80 = 257,336,215.20 : x - Step 2: Convert to fraction form
364,831,639.20/547,340,770.80 = 257,336,215.20/x - Step 3: Cross multiply
364,831,639.20x = 547,340,770.80 × 257,336,215.20 - Step 4: Simplify right side
364,831,639.20x = 140,850,602,382,322,656 - Step 5: Solve for x
x = 140,850,602,382,322,656/364,831,639.20 - Step 6: Final answer
x = 386,070,140.99
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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.