Finding the Fourth Proportional to 180,998,117.80, 271,497,176.70 and 65,986,412.20
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Solution
The fourth proportional to 180,998,117.80, 271,497,176.70 and 65,986,412.20 is: 98,979,618.30
Step by Step Solution
- Step 1: Write the proportion equation
180,998,117.80 : 271,497,176.70 = 65,986,412.20 : x - Step 2: Convert to fraction form
180,998,117.80/271,497,176.70 = 65,986,412.20/x - Step 3: Cross multiply
180,998,117.80x = 271,497,176.70 × 65,986,412.20 - Step 4: Simplify right side
180,998,117.80x = 17,915,124,612,862,436 - Step 5: Solve for x
x = 17,915,124,612,862,436/180,998,117.80 - Step 6: Final answer
x = 98,979,618.30
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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.