Finding the Fourth Proportional to 420,274,207.99, 630,346,660.25 and 140,160,043.69
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Solution
The fourth proportional to 420,274,207.99, 630,346,660.25 and 140,160,043.69 is: 210,218,504.40
Step by Step Solution
- Step 1: Write the proportion equation
420,274,207.99 : 630,346,660.25 = 140,160,043.69 : x - Step 2: Convert to fraction form
420,274,207.99/630,346,660.25 = 140,160,043.69/x - Step 3: Cross multiply
420,274,207.99x = 630,346,660.25 × 140,160,043.69 - Step 4: Simplify right side
420,274,207.99x = 88,349,415,440,485,584 - Step 5: Solve for x
x = 88,349,415,440,485,584/420,274,207.99 - Step 6: Final answer
x = 210,218,504.40
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.