Finding the Fourth Proportional to 13,878,435.51, 20,805,288.28 and 6,587,397.14
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Solution
The fourth proportional to 13,878,435.51, 20,805,288.28 and 6,587,397.14 is: 9,875,226.66
Step by Step Solution
- Step 1: Write the proportion equation
13,878,435.51 : 20,805,288.28 = 6,587,397.14 : x - Step 2: Convert to fraction form
13,878,435.51/20,805,288.28 = 6,587,397.14/x - Step 3: Cross multiply
13,878,435.51x = 20,805,288.28 × 6,587,397.14 - Step 4: Simplify right side
13,878,435.51x = 137,052,696,427,597.31 - Step 5: Solve for x
x = 137,052,696,427,597.31/13,878,435.51 - Step 6: Final answer
x = 9,875,226.66
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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.