Finding the Fourth Proportional to 153,962,607.38, 212,466,638.99 and 83,396,887.25
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Solution
The fourth proportional to 153,962,607.38, 212,466,638.99 and 83,396,887.25 is: 115,086,751.50
Step by Step Solution
- Step 1: Write the proportion equation
153,962,607.38 : 212,466,638.99 = 83,396,887.25 : x - Step 2: Convert to fraction form
153,962,607.38/212,466,638.99 = 83,396,887.25/x - Step 3: Cross multiply
153,962,607.38x = 212,466,638.99 × 83,396,887.25 - Step 4: Simplify right side
153,962,607.38x = 17,719,056,334,756,168 - Step 5: Solve for x
x = 17,719,056,334,756,168/153,962,607.38 - Step 6: Final answer
x = 115,086,751.50
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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.