Finding the Fourth Proportional to 19,571,829.20, 29,357,743.80 and 15,540,750.80
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Solution
The fourth proportional to 19,571,829.20, 29,357,743.80 and 15,540,750.80 is: 23,311,126.20
Step by Step Solution
- Step 1: Write the proportion equation
19,571,829.20 : 29,357,743.80 = 15,540,750.80 : x - Step 2: Convert to fraction form
19,571,829.20/29,357,743.80 = 15,540,750.80/x - Step 3: Cross multiply
19,571,829.20x = 29,357,743.80 × 15,540,750.80 - Step 4: Simplify right side
19,571,829.20x = 456,241,380,446,045.06 - Step 5: Solve for x
x = 456,241,380,446,045.06/19,571,829.20 - Step 6: Final answer
x = 23,311,126.20
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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.