Finding the Fourth Proportional to 291,357,317.40, 436,965,992.10 and 168,269,458.20
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Solution
The fourth proportional to 291,357,317.40, 436,965,992.10 and 168,269,458.20 is: 252,363,768.99
Step by Step Solution
- Step 1: Write the proportion equation
291,357,317.40 : 436,965,992.10 = 168,269,458.20 : x - Step 2: Convert to fraction form
291,357,317.40/436,965,992.10 = 168,269,458.20/x - Step 3: Cross multiply
291,357,317.40x = 436,965,992.10 × 168,269,458.20 - Step 4: Simplify right side
291,357,317.40x = 73,528,030,742,492,480 - Step 5: Solve for x
x = 73,528,030,742,492,480/291,357,317.40 - Step 6: Final answer
x = 252,363,768.99
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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.