Finding the Fourth Proportional to 5,181,387.64, 7,772,599.98 and 1,587,113.08
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Solution
The fourth proportional to 5,181,387.64, 7,772,599.98 and 1,587,113.08 is: 2,380,828.45
Step by Step Solution
- Step 1: Write the proportion equation
5,181,387.64 : 7,772,599.98 = 1,587,113.08 : x - Step 2: Convert to fraction form
5,181,387.64/7,772,599.98 = 1,587,113.08/x - Step 3: Cross multiply
5,181,387.64x = 7,772,599.98 × 1,587,113.08 - Step 4: Simplify right side
5,181,387.64x = 12,335,995,093,865.74 - Step 5: Solve for x
x = 12,335,995,093,865.74/5,181,387.64 - Step 6: Final answer
x = 2,380,828.45
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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.