Finding the Fourth Proportional to 85,214,960.20, 127,822,440.30 and 59,138,921.80
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Solution
The fourth proportional to 85,214,960.20, 127,822,440.30 and 59,138,921.80 is: 88,708,382.70
Step by Step Solution
- Step 1: Write the proportion equation
85,214,960.20 : 127,822,440.30 = 59,138,921.80 : x - Step 2: Convert to fraction form
85,214,960.20/127,822,440.30 = 59,138,921.80/x - Step 3: Cross multiply
85,214,960.20x = 127,822,440.30 × 59,138,921.80 - Step 4: Simplify right side
85,214,960.20x = 7,559,281,301,186,868 - Step 5: Solve for x
x = 7,559,281,301,186,868/85,214,960.20 - Step 6: Final answer
x = 88,708,382.70
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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.