Finding the Fourth Proportional to 88,163,771.17, 121,662,939.85 and 56,803,142.06
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Solution
The fourth proportional to 88,163,771.17, 121,662,939.85 and 56,803,142.06 is: 78,386,361.70
Step by Step Solution
- Step 1: Write the proportion equation
88,163,771.17 : 121,662,939.85 = 56,803,142.06 : x - Step 2: Convert to fraction form
88,163,771.17/121,662,939.85 = 56,803,142.06/x - Step 3: Cross multiply
88,163,771.17x = 121,662,939.85 × 56,803,142.06 - Step 4: Simplify right side
88,163,771.17x = 6,910,837,255,761,933 - Step 5: Solve for x
x = 6,910,837,255,761,933/88,163,771.17 - Step 6: Final answer
x = 78,386,361.70
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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.