Finding the Fourth Proportional to 249,839,448.98, 344,789,213.76 and 138,330,291.92
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Solution
The fourth proportional to 249,839,448.98, 344,789,213.76 and 138,330,291.92 is: 190,901,768.25
Step by Step Solution
- Step 1: Write the proportion equation
249,839,448.98 : 344,789,213.76 = 138,330,291.92 : x - Step 2: Convert to fraction form
249,839,448.98/344,789,213.76 = 138,330,291.92/x - Step 3: Cross multiply
249,839,448.98x = 344,789,213.76 × 138,330,291.92 - Step 4: Simplify right side
249,839,448.98x = 47,694,792,588,564,128 - Step 5: Solve for x
x = 47,694,792,588,564,128/249,839,448.98 - Step 6: Final answer
x = 190,901,768.25
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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.