Finding the Fourth Proportional to 101,221,541.60, 139,685,475.48 and 54,811,793.12
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Solution
The fourth proportional to 101,221,541.60, 139,685,475.48 and 54,811,793.12 is: 75,640,138.09
Step by Step Solution
- Step 1: Write the proportion equation
101,221,541.60 : 139,685,475.48 = 54,811,793.12 : x - Step 2: Convert to fraction form
101,221,541.60/139,685,475.48 = 54,811,793.12/x - Step 3: Cross multiply
101,221,541.60x = 139,685,475.48 × 54,811,793.12 - Step 4: Simplify right side
101,221,541.60x = 7,656,411,383,878,592 - Step 5: Solve for x
x = 7,656,411,383,878,592/101,221,541.60 - Step 6: Final answer
x = 75,640,138.09
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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.