Finding the Fourth Proportional to 135,694,977.16, 187,258,926.76 and 73,815,168.12
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Solution
The fourth proportional to 135,694,977.16, 187,258,926.76 and 73,815,168.12 is: 101,864,854.91
Step by Step Solution
- Step 1: Write the proportion equation
135,694,977.16 : 187,258,926.76 = 73,815,168.12 : x - Step 2: Convert to fraction form
135,694,977.16/187,258,926.76 = 73,815,168.12/x - Step 3: Cross multiply
135,694,977.16x = 187,258,926.76 × 73,815,168.12 - Step 4: Simplify right side
135,694,977.16x = 13,822,549,160,760,168 - Step 5: Solve for x
x = 13,822,549,160,760,168/135,694,977.16 - Step 6: Final answer
x = 101,864,854.91
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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.