Finding the Fourth Proportional to 393,660,117.80, 590,490,176.70 and 393,660,117.80
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Solution
The fourth proportional to 393,660,117.80, 590,490,176.70 and 393,660,117.80 is: 590,490,176.70
Step by Step Solution
- Step 1: Write the proportion equation
393,660,117.80 : 590,490,176.70 = 393,660,117.80 : x - Step 2: Convert to fraction form
393,660,117.80/590,490,176.70 = 393,660,117.80/x - Step 3: Cross multiply
393,660,117.80x = 590,490,176.70 × 393,660,117.80 - Step 4: Simplify right side
393,660,117.80x = 232,452,432,519,464,832 - Step 5: Solve for x
x = 232,452,432,519,464,832/393,660,117.80 - Step 6: Final answer
x = 590,490,176.70
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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.