Finding the Fourth Proportional to 134,879,380.74, 186,133,540.95 and 72,999,718.70
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Solution
The fourth proportional to 134,879,380.74, 186,133,540.95 and 72,999,718.70 is: 100,739,609.38
Step by Step Solution
- Step 1: Write the proportion equation
134,879,380.74 : 186,133,540.95 = 72,999,718.70 : x - Step 2: Convert to fraction form
134,879,380.74/186,133,540.95 = 72,999,718.70/x - Step 3: Cross multiply
134,879,380.74x = 186,133,540.95 × 72,999,718.70 - Step 4: Simplify right side
134,879,380.74x = 13,587,696,129,054,260 - Step 5: Solve for x
x = 13,587,696,129,054,260/134,879,380.74 - Step 6: Final answer
x = 100,739,609.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.