Finding the Fourth Proportional to 249,974,542.21, 344,964,838.70 and 149,502,963.88
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Solution
The fourth proportional to 249,974,542.21, 344,964,838.70 and 149,502,963.88 is: 206,314,072.48
Step by Step Solution
- Step 1: Write the proportion equation
249,974,542.21 : 344,964,838.70 = 149,502,963.88 : x - Step 2: Convert to fraction form
249,974,542.21/344,964,838.70 = 149,502,963.88/x - Step 3: Cross multiply
249,974,542.21x = 344,964,838.70 × 149,502,963.88 - Step 4: Simplify right side
249,974,542.21x = 51,573,265,819,288,608 - Step 5: Solve for x
x = 51,573,265,819,288,608/249,974,542.21 - Step 6: Final answer
x = 206,314,072.48
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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.