Finding the Fourth Proportional to 1,262,032,743.43, 1,893,087,680.84 and 432,974,756.49
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Solution
The fourth proportional to 1,262,032,743.43, 1,893,087,680.84 and 432,974,756.49 is: 649,475,365.75
Step by Step Solution
- Step 1: Write the proportion equation
1,262,032,743.43 : 1,893,087,680.84 = 432,974,756.49 : x - Step 2: Convert to fraction form
1,262,032,743.43/1,893,087,680.84 = 432,974,756.49/x - Step 3: Cross multiply
1,262,032,743.43x = 1,893,087,680.84 × 432,974,756.49 - Step 4: Simplify right side
1,262,032,743.43x = 819,659,177,625,917,824 - Step 5: Solve for x
x = 819,659,177,625,917,824/1,262,032,743.43 - Step 6: Final answer
x = 649,475,365.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.