Finding the Fourth Proportional to 101,043,786.44, 139,434,700.11 and 56,988,152.12
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Solution
The fourth proportional to 101,043,786.44, 139,434,700.11 and 56,988,152.12 is: 78,640,420.96
Step by Step Solution
- Step 1: Write the proportion equation
101,043,786.44 : 139,434,700.11 = 56,988,152.12 : x - Step 2: Convert to fraction form
101,043,786.44/139,434,700.11 = 56,988,152.12/x - Step 3: Cross multiply
101,043,786.44x = 139,434,700.11 × 56,988,152.12 - Step 4: Simplify right side
101,043,786.44x = 7,946,125,900,675,261 - Step 5: Solve for x
x = 7,946,125,900,675,261/101,043,786.44 - Step 6: Final answer
x = 78,640,420.96
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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.