Finding the Fourth Proportional to 1,528,682,626.98, 2,109,539,291.22 and 926,209,951.92
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Solution
The fourth proportional to 1,528,682,626.98, 2,109,539,291.22 and 926,209,951.92 is: 1,278,143,841.64
Step by Step Solution
- Step 1: Write the proportion equation
1,528,682,626.98 : 2,109,539,291.22 = 926,209,951.92 : x - Step 2: Convert to fraction form
1,528,682,626.98/2,109,539,291.22 = 926,209,951.92/x - Step 3: Cross multiply
1,528,682,626.98x = 2,109,539,291.22 × 926,209,951.92 - Step 4: Simplify right side
1,528,682,626.98x = 1,953,876,285,494,226,944 - Step 5: Solve for x
x = 1,953,876,285,494,226,944/1,528,682,626.98 - Step 6: Final answer
x = 1,278,143,841.64
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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.