Finding the Fourth Proportional to 69,640,655.20, 96,002,816.56 and 48,667,572.96
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Solution
The fourth proportional to 69,640,655.20, 96,002,816.56 and 48,667,572.96 is: 67,090,467.00
Step by Step Solution
- Step 1: Write the proportion equation
69,640,655.20 : 96,002,816.56 = 48,667,572.96 : x - Step 2: Convert to fraction form
69,640,655.20/96,002,816.56 = 48,667,572.96/x - Step 3: Cross multiply
69,640,655.20x = 96,002,816.56 × 48,667,572.96 - Step 4: Simplify right side
69,640,655.20x = 4,672,224,079,299,296 - Step 5: Solve for x
x = 4,672,224,079,299,296/69,640,655.20 - Step 6: Final answer
x = 67,090,467.00
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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.