Finding the Fourth Proportional to 48,584,739.20, 72,877,108.80 and 19,821,315.20
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Solution
The fourth proportional to 48,584,739.20, 72,877,108.80 and 19,821,315.20 is: 29,731,972.80
Step by Step Solution
- Step 1: Write the proportion equation
48,584,739.20 : 72,877,108.80 = 19,821,315.20 : x - Step 2: Convert to fraction form
48,584,739.20/72,877,108.80 = 19,821,315.20/x - Step 3: Cross multiply
48,584,739.20x = 72,877,108.80 × 19,821,315.20 - Step 4: Simplify right side
48,584,739.20x = 1,444,520,144,389,493.75 - Step 5: Solve for x
x = 1,444,520,144,389,493.75/48,584,739.20 - Step 6: Final answer
x = 29,731,972.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.