Finding the Fourth Proportional to 25,656,417.70, 38,430,972.15 and 12,021,201.70
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Solution
The fourth proportional to 25,656,417.70, 38,430,972.15 and 12,021,201.70 is: 18,006,663.02
Step by Step Solution
- Step 1: Write the proportion equation
25,656,417.70 : 38,430,972.15 = 12,021,201.70 : x - Step 2: Convert to fraction form
25,656,417.70/38,430,972.15 = 12,021,201.70/x - Step 3: Cross multiply
25,656,417.70x = 38,430,972.15 × 12,021,201.70 - Step 4: Simplify right side
25,656,417.70x = 461,986,467,742,232.62 - Step 5: Solve for x
x = 461,986,467,742,232.62/25,656,417.70 - Step 6: Final answer
x = 18,006,663.02
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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.