Finding the Fourth Proportional to 145,676,876.80, 201,028,107.84 and 79,599,643.42
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Solution
The fourth proportional to 145,676,876.80, 201,028,107.84 and 79,599,643.42 is: 109,844,239.20
Step by Step Solution
- Step 1: Write the proportion equation
145,676,876.80 : 201,028,107.84 = 79,599,643.42 : x - Step 2: Convert to fraction form
145,676,876.80/201,028,107.84 = 79,599,643.42/x - Step 3: Cross multiply
145,676,876.80x = 201,028,107.84 × 79,599,643.42 - Step 4: Simplify right side
145,676,876.80x = 16,001,765,701,461,308 - Step 5: Solve for x
x = 16,001,765,701,461,308/145,676,876.80 - Step 6: Final answer
x = 109,844,239.20
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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.