Finding the Fourth Proportional to 18,947,032.71, 26,145,325.58 and 10,686,639.75
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Solution
The fourth proportional to 18,947,032.71, 26,145,325.58 and 10,686,639.75 is: 14,746,671.94
Step by Step Solution
- Step 1: Write the proportion equation
18,947,032.71 : 26,145,325.58 = 10,686,639.75 : x - Step 2: Convert to fraction form
18,947,032.71/26,145,325.58 = 10,686,639.75/x - Step 3: Cross multiply
18,947,032.71x = 26,145,325.58 × 10,686,639.75 - Step 4: Simplify right side
18,947,032.71x = 279,405,675,566,486.59 - Step 5: Solve for x
x = 279,405,675,566,486.59/18,947,032.71 - Step 6: Final answer
x = 14,746,671.94
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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.