Finding the Fourth Proportional to 25,549,776.31, 38,324,666.14 and 20,408,133.09
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Solution
The fourth proportional to 25,549,776.31, 38,324,666.14 and 20,408,133.09 is: 30,612,200.96
Step by Step Solution
- Step 1: Write the proportion equation
25,549,776.31 : 38,324,666.14 = 20,408,133.09 : x - Step 2: Convert to fraction form
25,549,776.31/38,324,666.14 = 20,408,133.09/x - Step 3: Cross multiply
25,549,776.31x = 38,324,666.14 × 20,408,133.09 - Step 4: Simplify right side
25,549,776.31x = 782,134,887,012,984.88 - Step 5: Solve for x
x = 782,134,887,012,984.88/25,549,776.31 - Step 6: Final answer
x = 30,612,200.96
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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.