Finding the Fourth Proportional to 249,839,485.97, 344,789,265.13 and 138,330,329.18
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Solution
The fourth proportional to 249,839,485.97, 344,789,265.13 and 138,330,329.18 is: 190,901,819.85
Step by Step Solution
- Step 1: Write the proportion equation
249,839,485.97 : 344,789,265.13 = 138,330,329.18 : x - Step 2: Convert to fraction form
249,839,485.97/344,789,265.13 = 138,330,329.18/x - Step 3: Cross multiply
249,839,485.97x = 344,789,265.13 × 138,330,329.18 - Step 4: Simplify right side
249,839,485.97x = 47,694,812,541,093,424 - Step 5: Solve for x
x = 47,694,812,541,093,424/249,839,485.97 - Step 6: Final answer
x = 190,901,819.85
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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.