Finding the Fourth Proportional to 1,640,444,869.66, 2,460,673,688.45 and 396,873,338.12
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Solution
The fourth proportional to 1,640,444,869.66, 2,460,673,688.45 and 396,873,338.12 is: 595,311,551.66
Step by Step Solution
- Step 1: Write the proportion equation
1,640,444,869.66 : 2,460,673,688.45 = 396,873,338.12 : x - Step 2: Convert to fraction form
1,640,444,869.66/2,460,673,688.45 = 396,873,338.12/x - Step 3: Cross multiply
1,640,444,869.66x = 2,460,673,688.45 × 396,873,338.12 - Step 4: Simplify right side
1,640,444,869.66x = 976,575,780,760,196,480 - Step 5: Solve for x
x = 976,575,780,760,196,480/1,640,444,869.66 - Step 6: Final answer
x = 595,311,551.66
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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.