Finding the Fourth Proportional to 87,626,848.34, 120,916,935.60 and 48,467,782.28
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Solution
The fourth proportional to 87,626,848.34, 120,916,935.60 and 48,467,782.28 is: 66,881,050.95
Step by Step Solution
- Step 1: Write the proportion equation
87,626,848.34 : 120,916,935.60 = 48,467,782.28 : x - Step 2: Convert to fraction form
87,626,848.34/120,916,935.60 = 48,467,782.28/x - Step 3: Cross multiply
87,626,848.34x = 120,916,935.60 × 48,467,782.28 - Step 4: Simplify right side
87,626,848.34x = 5,860,575,708,625,581 - Step 5: Solve for x
x = 5,860,575,708,625,581/87,626,848.34 - Step 6: Final answer
x = 66,881,050.95
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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.