Finding the Fourth Proportional to 206,248,800.79, 309,509,497.20 and 97,105,184.79
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Solution
The fourth proportional to 206,248,800.79, 309,509,497.20 and 97,105,184.79 is: 145,721,947.50
Step by Step Solution
- Step 1: Write the proportion equation
206,248,800.79 : 309,509,497.20 = 97,105,184.79 : x - Step 2: Convert to fraction form
206,248,800.79/309,509,497.20 = 97,105,184.79/x - Step 3: Cross multiply
206,248,800.79x = 309,509,497.20 × 97,105,184.79 - Step 4: Simplify right side
206,248,800.79x = 30,054,976,920,810,464 - Step 5: Solve for x
x = 30,054,976,920,810,464/206,248,800.79 - Step 6: Final answer
x = 145,721,947.50
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1.5x scale
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.