Finding the Fourth Proportional to 141,971,440.14, 195,920,718.12 and 76,781,344.14
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Solution
The fourth proportional to 141,971,440.14, 195,920,718.12 and 76,781,344.14 is: 105,958,325.61
Step by Step Solution
- Step 1: Write the proportion equation
141,971,440.14 : 195,920,718.12 = 76,781,344.14 : x - Step 2: Convert to fraction form
141,971,440.14/195,920,718.12 = 76,781,344.14/x - Step 3: Cross multiply
141,971,440.14x = 195,920,718.12 × 76,781,344.14 - Step 4: Simplify right side
141,971,440.14x = 15,043,056,082,127,654 - Step 5: Solve for x
x = 15,043,056,082,127,654/141,971,440.14 - Step 6: Final answer
x = 105,958,325.61
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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.