Finding the Fourth Proportional to 343,023,513.57, 473,371,418.12 and 186,391,098.45
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Solution
The fourth proportional to 343,023,513.57, 473,371,418.12 and 186,391,098.45 is: 257,219,155.85
Step by Step Solution
- Step 1: Write the proportion equation
343,023,513.57 : 473,371,418.12 = 186,391,098.45 : x - Step 2: Convert to fraction form
343,023,513.57/473,371,418.12 = 186,391,098.45/x - Step 3: Cross multiply
343,023,513.57x = 473,371,418.12 × 186,391,098.45 - Step 4: Simplify right side
343,023,513.57x = 88,232,218,597,289,072 - Step 5: Solve for x
x = 88,232,218,597,289,072/343,023,513.57 - Step 6: Final answer
x = 257,219,155.85
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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.