Finding the Fourth Proportional to 87,232,805.14, 120,381,290.05 and 47,540,345.28
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Solution
The fourth proportional to 87,232,805.14, 120,381,290.05 and 47,540,345.28 is: 65,605,686.82
Step by Step Solution
- Step 1: Write the proportion equation
87,232,805.14 : 120,381,290.05 = 47,540,345.28 : x - Step 2: Convert to fraction form
87,232,805.14/120,381,290.05 = 47,540,345.28/x - Step 3: Cross multiply
87,232,805.14x = 120,381,290.05 × 47,540,345.28 - Step 4: Simplify right side
87,232,805.14x = 5,722,968,094,410,931 - Step 5: Solve for x
x = 5,722,968,094,410,931/87,232,805.14 - Step 6: Final answer
x = 65,605,686.82
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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.