Finding the Fourth Proportional to 386,653,469.63, 533,593,506.42 and 210,454,206.08
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Solution
The fourth proportional to 386,653,469.63, 533,593,506.42 and 210,454,206.08 is: 290,433,182.64
Step by Step Solution
- Step 1: Write the proportion equation
386,653,469.63 : 533,593,506.42 = 210,454,206.08 : x - Step 2: Convert to fraction form
386,653,469.63/533,593,506.42 = 210,454,206.08/x - Step 3: Cross multiply
386,653,469.63x = 533,593,506.42 × 210,454,206.08 - Step 4: Simplify right side
386,653,469.63x = 112,296,997,760,396,512 - Step 5: Solve for x
x = 112,296,997,760,396,512/386,653,469.63 - Step 6: Final answer
x = 290,433,182.64
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.