Finding the Fourth Proportional to 84,993,206.10, 127,489,809.15 and 83,103,638.10
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Solution
The fourth proportional to 84,993,206.10, 127,489,809.15 and 83,103,638.10 is: 124,655,457.15
Step by Step Solution
- Step 1: Write the proportion equation
84,993,206.10 : 127,489,809.15 = 83,103,638.10 : x - Step 2: Convert to fraction form
84,993,206.10/127,489,809.15 = 83,103,638.10/x - Step 3: Cross multiply
84,993,206.10x = 127,489,809.15 × 83,103,638.10 - Step 4: Simplify right side
84,993,206.10x = 10,594,866,961,039,668 - Step 5: Solve for x
x = 10,594,866,961,039,668/84,993,206.10 - Step 6: Final answer
x = 124,655,457.15
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Similar ratio
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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.