Finding the Fourth Proportional to 2,107,400,160, 2,908,212,220.80 and 1,180,252,128
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Solution
The fourth proportional to 2,107,400,160, 2,908,212,220.80 and 1,180,252,128 is: 1,628,747,936.64
Step by Step Solution
- Step 1: Write the proportion equation
2,107,400,160 : 2,908,212,220.80 = 1,180,252,128 : x - Step 2: Convert to fraction form
2,107,400,160/2,908,212,220.80 = 1,180,252,128/x - Step 3: Cross multiply
2,107,400,160x = 2,908,212,220.80 × 1,180,252,128 - Step 4: Simplify right side
2,107,400,160x = 3,432,423,662,274,806,272 - Step 5: Solve for x
x = 3,432,423,662,274,806,272/2,107,400,160 - Step 6: Final answer
x = 1,628,747,936.64
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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.