Finding the Fourth Proportional to 84,484,813.20, 126,727,219.80 and 84,484,813.20
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Solution
The fourth proportional to 84,484,813.20, 126,727,219.80 and 84,484,813.20 is: 126,727,219.80
Step by Step Solution
- Step 1: Write the proportion equation
84,484,813.20 : 126,727,219.80 = 84,484,813.20 : x - Step 2: Convert to fraction form
84,484,813.20/126,727,219.80 = 84,484,813.20/x - Step 3: Cross multiply
84,484,813.20x = 126,727,219.80 × 84,484,813.20 - Step 4: Simplify right side
84,484,813.20x = 10,706,525,492,158,342 - Step 5: Solve for x
x = 10,706,525,492,158,342/84,484,813.20 - Step 6: Final answer
x = 126,727,219.80
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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.