Finding the Fourth Proportional to 8,495,863.68, 12,739,071.60 and 2,812,987.92
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Solution
The fourth proportional to 8,495,863.68, 12,739,071.60 and 2,812,987.92 is: 4,217,917.79
Step by Step Solution
- Step 1: Write the proportion equation
8,495,863.68 : 12,739,071.60 = 2,812,987.92 : x - Step 2: Convert to fraction form
8,495,863.68/12,739,071.60 = 2,812,987.92/x - Step 3: Cross multiply
8,495,863.68x = 12,739,071.60 × 2,812,987.92 - Step 4: Simplify right side
8,495,863.68x = 35,834,854,522,815.07 - Step 5: Solve for x
x = 35,834,854,522,815.07/8,495,863.68 - Step 6: Final answer
x = 4,217,917.79
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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.