Finding the Fourth Proportional to 536,201,620.20, 804,302,430.30 and 379,745,389.80
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Solution
The fourth proportional to 536,201,620.20, 804,302,430.30 and 379,745,389.80 is: 569,618,084.70
Step by Step Solution
- Step 1: Write the proportion equation
536,201,620.20 : 804,302,430.30 = 379,745,389.80 : x - Step 2: Convert to fraction form
536,201,620.20/804,302,430.30 = 379,745,389.80/x - Step 3: Cross multiply
536,201,620.20x = 804,302,430.30 × 379,745,389.80 - Step 4: Simplify right side
536,201,620.20x = 305,430,139,911,360,832 - Step 5: Solve for x
x = 305,430,139,911,360,832/536,201,620.20 - Step 6: Final answer
x = 569,618,084.70
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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.