Finding the Fourth Proportional to 118,086,070.58, 162,991,189.68 and 68,542,405.68
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Solution
The fourth proportional to 118,086,070.58, 162,991,189.68 and 68,542,405.68 is: 94,607,333.37
Step by Step Solution
- Step 1: Write the proportion equation
118,086,070.58 : 162,991,189.68 = 68,542,405.68 : x - Step 2: Convert to fraction form
118,086,070.58/162,991,189.68 = 68,542,405.68/x - Step 3: Cross multiply
118,086,070.58x = 162,991,189.68 × 68,542,405.68 - Step 4: Simplify right side
118,086,070.58x = 11,171,808,245,312,392 - Step 5: Solve for x
x = 11,171,808,245,312,392/118,086,070.58 - Step 6: Final answer
x = 94,607,333.37
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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.