Finding the Fourth Proportional to 8,557,873.90, 11,808,120.64 and 5,071,676.02
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Solution
The fourth proportional to 8,557,873.90, 11,808,120.64 and 5,071,676.02 is: 6,997,878.56
Step by Step Solution
- Step 1: Write the proportion equation
8,557,873.90 : 11,808,120.64 = 5,071,676.02 : x - Step 2: Convert to fraction form
8,557,873.90/11,808,120.64 = 5,071,676.02/x - Step 3: Cross multiply
8,557,873.90x = 11,808,120.64 × 5,071,676.02 - Step 4: Simplify right side
8,557,873.90x = 59,886,962,291,155.05 - Step 5: Solve for x
x = 59,886,962,291,155.05/8,557,873.90 - Step 6: Final answer
x = 6,997,878.56
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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.