Finding the Fourth Proportional to 101,680,910.57, 140,319,746.99 and 55,271,164.48
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Solution
The fourth proportional to 101,680,910.57, 140,319,746.99 and 55,271,164.48 is: 76,274,256.12
Step by Step Solution
- Step 1: Write the proportion equation
101,680,910.57 : 140,319,746.99 = 55,271,164.48 : x - Step 2: Convert to fraction form
101,680,910.57/140,319,746.99 = 55,271,164.48/x - Step 3: Cross multiply
101,680,910.57x = 140,319,746.99 × 55,271,164.48 - Step 4: Simplify right side
101,680,910.57x = 7,755,635,815,256,387 - Step 5: Solve for x
x = 7,755,635,815,256,387/101,680,910.57 - Step 6: Final answer
x = 76,274,256.12
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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.