Finding the Fourth Proportional to 1,284,166,901.97, 1,772,159,394.65 and 697,456,037.97
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Solution
The fourth proportional to 1,284,166,901.97, 1,772,159,394.65 and 697,456,037.97 is: 962,494,258.45
Step by Step Solution
- Step 1: Write the proportion equation
1,284,166,901.97 : 1,772,159,394.65 = 697,456,037.97 : x - Step 2: Convert to fraction form
1,284,166,901.97/1,772,159,394.65 = 697,456,037.97/x - Step 3: Cross multiply
1,284,166,901.97x = 1,772,159,394.65 × 697,456,037.97 - Step 4: Simplify right side
1,284,166,901.97x = 1,236,003,270,040,415,488 - Step 5: Solve for x
x = 1,236,003,270,040,415,488/1,284,166,901.97 - Step 6: Final answer
x = 962,494,258.45
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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.