Finding the Fourth Proportional to 289,203,400.08, 399,099,246.57 and 157,043,219.76
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Solution
The fourth proportional to 289,203,400.08, 399,099,246.57 and 157,043,219.76 is: 216,718,858.31
Step by Step Solution
- Step 1: Write the proportion equation
289,203,400.08 : 399,099,246.57 = 157,043,219.76 : x - Step 2: Convert to fraction form
289,203,400.08/399,099,246.57 = 157,043,219.76/x - Step 3: Cross multiply
289,203,400.08x = 399,099,246.57 × 157,043,219.76 - Step 4: Simplify right side
289,203,400.08x = 62,675,830,685,142,928 - Step 5: Solve for x
x = 62,675,830,685,142,928/289,203,400.08 - Step 6: Final answer
x = 216,718,858.31
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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.