Finding the Fourth Proportional to 235,391,554.80, 324,885,318.12 and 155,866,349.88
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Solution
The fourth proportional to 235,391,554.80, 324,885,318.12 and 155,866,349.88 is: 215,125,341.72
Step by Step Solution
- Step 1: Write the proportion equation
235,391,554.80 : 324,885,318.12 = 155,866,349.88 : x - Step 2: Convert to fraction form
235,391,554.80/324,885,318.12 = 155,866,349.88/x - Step 3: Cross multiply
235,391,554.80x = 324,885,318.12 × 155,866,349.88 - Step 4: Simplify right side
235,391,554.80x = 50,638,688,664,967,024 - Step 5: Solve for x
x = 50,638,688,664,967,024/235,391,554.80 - Step 6: Final answer
x = 215,125,341.72
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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.