Finding the Fourth Proportional to 156,438,163.20, 219,466,924.80 and 156,438,163.20
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Solution
The fourth proportional to 156,438,163.20, 219,466,924.80 and 156,438,163.20 is: 219,466,924.80
Step by Step Solution
- Step 1: Write the proportion equation
156,438,163.20 : 219,466,924.80 = 156,438,163.20 : x - Step 2: Convert to fraction form
156,438,163.20/219,466,924.80 = 156,438,163.20/x - Step 3: Cross multiply
156,438,163.20x = 219,466,924.80 × 156,438,163.20 - Step 4: Simplify right side
156,438,163.20x = 34,333,002,598,864,528 - Step 5: Solve for x
x = 34,333,002,598,864,528/156,438,163.20 - Step 6: Final answer
x = 219,466,924.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.