Finding the Fourth Proportional to 1,186,163,843.84, 1,636,919,419.84 and 677,593,909.88
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Solution
The fourth proportional to 1,186,163,843.84, 1,636,919,419.84 and 677,593,909.88 is: 935,087,202.00
Step by Step Solution
- Step 1: Write the proportion equation
1,186,163,843.84 : 1,636,919,419.84 = 677,593,909.88 : x - Step 2: Convert to fraction form
1,186,163,843.84/1,636,919,419.84 = 677,593,909.88/x - Step 3: Cross multiply
1,186,163,843.84x = 1,636,919,419.84 × 677,593,909.88 - Step 4: Simplify right side
1,186,163,843.84x = 1,109,166,629,847,886,720 - Step 5: Solve for x
x = 1,109,166,629,847,886,720/1,186,163,843.84 - Step 6: Final answer
x = 935,087,202.00
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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.