Finding the Fourth Proportional to 121,395,957.13, 167,526,302.68 and 65,641,244.12
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Solution
The fourth proportional to 121,395,957.13, 167,526,302.68 and 65,641,244.12 is: 90,584,852.99
Step by Step Solution
- Step 1: Write the proportion equation
121,395,957.13 : 167,526,302.68 = 65,641,244.12 : x - Step 2: Convert to fraction form
121,395,957.13/167,526,302.68 = 65,641,244.12/x - Step 3: Cross multiply
121,395,957.13x = 167,526,302.68 × 65,641,244.12 - Step 4: Simplify right side
121,395,957.13x = 10,996,634,930,410,684 - Step 5: Solve for x
x = 10,996,634,930,410,684/121,395,957.13 - Step 6: Final answer
x = 90,584,852.99
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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.