Finding the Fourth Proportional to 168,469,858.20, 253,854,717.69 and 138,437,203.08
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Solution
The fourth proportional to 168,469,858.20, 253,854,717.69 and 138,437,203.08 is: 208,600,740.10
Step by Step Solution
- Step 1: Write the proportion equation
168,469,858.20 : 253,854,717.69 = 138,437,203.08 : x - Step 2: Convert to fraction form
168,469,858.20/253,854,717.69 = 138,437,203.08/x - Step 3: Cross multiply
168,469,858.20x = 253,854,717.69 × 138,437,203.08 - Step 4: Simplify right side
168,469,858.20x = 35,142,937,105,666,600 - Step 5: Solve for x
x = 35,142,937,105,666,600/168,469,858.20 - Step 6: Final answer
x = 208,600,740.10
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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.