Finding the Fourth Proportional to 112,291,372.80, 168,437,059.20 and 39,519,385.20
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Solution
The fourth proportional to 112,291,372.80, 168,437,059.20 and 39,519,385.20 is: 59,279,077.80
Step by Step Solution
- Step 1: Write the proportion equation
112,291,372.80 : 168,437,059.20 = 39,519,385.20 : x - Step 2: Convert to fraction form
112,291,372.80/168,437,059.20 = 39,519,385.20/x - Step 3: Cross multiply
112,291,372.80x = 168,437,059.20 × 39,519,385.20 - Step 4: Simplify right side
112,291,372.80x = 6,656,529,024,480,004 - Step 5: Solve for x
x = 6,656,529,024,480,004/112,291,372.80 - Step 6: Final answer
x = 59,279,077.80
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1.5x scale
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.