Finding the Fourth Proportional to 381,313,753.08, 526,197,484.68 and 216,297,779.64
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Solution
The fourth proportional to 381,313,753.08, 526,197,484.68 and 216,297,779.64 is: 298,482,146.71
Step by Step Solution
- Step 1: Write the proportion equation
381,313,753.08 : 526,197,484.68 = 216,297,779.64 : x - Step 2: Convert to fraction form
381,313,753.08/526,197,484.68 = 216,297,779.64/x - Step 3: Cross multiply
381,313,753.08x = 526,197,484.68 × 216,297,779.64 - Step 4: Simplify right side
381,313,753.08x = 113,815,347,588,436,912 - Step 5: Solve for x
x = 113,815,347,588,436,912/381,313,753.08 - Step 6: Final answer
x = 298,482,146.71
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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.