Finding the Fourth Proportional to 1,623,043,208.20, 2,436,139,122.23 and 783,276,930.92
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Solution
The fourth proportional to 1,623,043,208.20, 2,436,139,122.23 and 783,276,930.92 is: 1,175,675,154.74
Step by Step Solution
- Step 1: Write the proportion equation
1,623,043,208.20 : 2,436,139,122.23 = 783,276,930.92 : x - Step 2: Convert to fraction form
1,623,043,208.20/2,436,139,122.23 = 783,276,930.92/x - Step 3: Cross multiply
1,623,043,208.20x = 2,436,139,122.23 × 783,276,930.92 - Step 4: Simplify right side
1,623,043,208.20x = 1,908,171,574,948,863,488 - Step 5: Solve for x
x = 1,908,171,574,948,863,488/1,623,043,208.20 - Step 6: Final answer
x = 1,175,675,154.74
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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.