Finding the Fourth Proportional to 211,281,885.11, 291,563,375.57 and 121,970,815.11
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Solution
The fourth proportional to 211,281,885.11, 291,563,375.57 and 121,970,815.11 is: 168,316,477.09
Step by Step Solution
- Step 1: Write the proportion equation
211,281,885.11 : 291,563,375.57 = 121,970,815.11 : x - Step 2: Convert to fraction form
211,281,885.11/291,563,375.57 = 121,970,815.11/x - Step 3: Cross multiply
211,281,885.11x = 291,563,375.57 × 121,970,815.11 - Step 4: Simplify right side
211,281,885.11x = 35,562,222,574,495,960 - Step 5: Solve for x
x = 35,562,222,574,495,960/211,281,885.11 - Step 6: Final answer
x = 168,316,477.09
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.