Finding the Fourth Proportional to 393,675,271.20, 590,512,906.80 and 134,804,455.20
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Solution
The fourth proportional to 393,675,271.20, 590,512,906.80 and 134,804,455.20 is: 202,206,682.80
Step by Step Solution
- Step 1: Write the proportion equation
393,675,271.20 : 590,512,906.80 = 134,804,455.20 : x - Step 2: Convert to fraction form
393,675,271.20/590,512,906.80 = 134,804,455.20/x - Step 3: Cross multiply
393,675,271.20x = 590,512,906.80 × 134,804,455.20 - Step 4: Simplify right side
393,675,271.20x = 79,603,770,689,742,368 - Step 5: Solve for x
x = 79,603,770,689,742,368/393,675,271.20 - Step 6: Final answer
x = 202,206,682.80
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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.