Finding the Fourth Proportional to 2,105,798,765,828.20, 3,156,493,559,295.20 and 881,259,479,716.68
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Solution
The fourth proportional to 2,105,798,765,828.20, 3,156,493,559,295.20 and 881,259,479,716.68 is: 1,320,966,617,006.97
Step by Step Solution
- Step 1: Write the proportion equation
2,105,798,765,828.20 : 3,156,493,559,295.20 = 881,259,479,716.68 : x - Step 2: Convert to fraction form
2,105,798,765,828.20/3,156,493,559,295.20 = 881,259,479,716.68/x - Step 3: Cross multiply
2,105,798,765,828.20x = 3,156,493,559,295.20 × 881,259,479,716.68 - Step 4: Simplify right side
2,105,798,765,828.20x = 2,781,689,871,793,539,438,870,528 - Step 5: Solve for x
x = 2,781,689,871,793,539,438,870,528/2,105,798,765,828.20 - Step 6: Final answer
x = 1,320,966,617,006.97
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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.