Finding the Fourth Proportional to 85,540,871.60, 128,311,307.40 and 24,962,721.20
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Solution
The fourth proportional to 85,540,871.60, 128,311,307.40 and 24,962,721.20 is: 37,444,081.80
Step by Step Solution
- Step 1: Write the proportion equation
85,540,871.60 : 128,311,307.40 = 24,962,721.20 : x - Step 2: Convert to fraction form
85,540,871.60/128,311,307.40 = 24,962,721.20/x - Step 3: Cross multiply
85,540,871.60x = 128,311,307.40 × 24,962,721.20 - Step 4: Simplify right side
85,540,871.60x = 3,202,999,393,433,697 - Step 5: Solve for x
x = 3,202,999,393,433,697/85,540,871.60 - Step 6: Final answer
x = 37,444,081.80
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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.