Finding the Fourth Proportional to 1,186,163,835.84, 1,636,919,408.79 and 677,593,901.88
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Solution
The fourth proportional to 1,186,163,835.84, 1,636,919,408.79 and 677,593,901.88 is: 935,087,190.95
Step by Step Solution
- Step 1: Write the proportion equation
1,186,163,835.84 : 1,636,919,408.79 = 677,593,901.88 : x - Step 2: Convert to fraction form
1,186,163,835.84/1,636,919,408.79 = 677,593,901.88/x - Step 3: Cross multiply
1,186,163,835.84x = 1,636,919,408.79 × 677,593,901.88 - Step 4: Simplify right side
1,186,163,835.84x = 1,109,166,609,265,118,848 - Step 5: Solve for x
x = 1,109,166,609,265,118,848/1,186,163,835.84 - Step 6: Final answer
x = 935,087,190.95
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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.