Finding the Fourth Proportional to 1,528,682,620.23, 2,109,539,281.91 and 926,209,945.17
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Solution
The fourth proportional to 1,528,682,620.23, 2,109,539,281.91 and 926,209,945.17 is: 1,278,143,832.32
Step by Step Solution
- Step 1: Write the proportion equation
1,528,682,620.23 : 2,109,539,281.91 = 926,209,945.17 : x - Step 2: Convert to fraction form
1,528,682,620.23/2,109,539,281.91 = 926,209,945.17/x - Step 3: Cross multiply
1,528,682,620.23x = 2,109,539,281.91 × 926,209,945.17 - Step 4: Simplify right side
1,528,682,620.23x = 1,953,876,262,627,191,040 - Step 5: Solve for x
x = 1,953,876,262,627,191,040/1,528,682,620.23 - Step 6: Final answer
x = 1,278,143,832.32
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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.