Finding the Fourth Proportional to 1,289,890,702.80, 1,934,517,161.76 and 552,877,026
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Solution
The fourth proportional to 1,289,890,702.80, 1,934,517,161.76 and 552,877,026 is: 829,178,854.32
Step by Step Solution
- Step 1: Write the proportion equation
1,289,890,702.80 : 1,934,517,161.76 = 552,877,026 : x - Step 2: Convert to fraction form
1,289,890,702.80/1,934,517,161.76 = 552,877,026/x - Step 3: Cross multiply
1,289,890,702.80x = 1,934,517,161.76 × 552,877,026 - Step 4: Simplify right side
1,289,890,702.80x = 1,069,550,095,139,829,760 - Step 5: Solve for x
x = 1,069,550,095,139,829,760/1,289,890,702.80 - Step 6: Final answer
x = 829,178,854.32
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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.