Finding the Fourth Proportional to 121,910,065,636.49, 168,197,935,579.62 and 70,449,877,963.98
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Solution
The fourth proportional to 121,910,065,636.49, 168,197,935,579.62 and 70,449,877,963.98 is: 97,198,898,003.31
Step by Step Solution
- Step 1: Write the proportion equation
121,910,065,636.49 : 168,197,935,579.62 = 70,449,877,963.98 : x - Step 2: Convert to fraction form
121,910,065,636.49/168,197,935,579.62 = 70,449,877,963.98/x - Step 3: Cross multiply
121,910,065,636.49x = 168,197,935,579.62 × 70,449,877,963.98 - Step 4: Simplify right side
121,910,065,636.49x = 11,849,524,035,377,598,300,160 - Step 5: Solve for x
x = 11,849,524,035,377,598,300,160/121,910,065,636.49 - Step 6: Final answer
x = 97,198,898,003.31
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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.