Finding the Fourth Proportional to 165,430,017.36, 248,145,337.08 and 68,279,161.68
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Solution
The fourth proportional to 165,430,017.36, 248,145,337.08 and 68,279,161.68 is: 102,418,870.90
Step by Step Solution
- Step 1: Write the proportion equation
165,430,017.36 : 248,145,337.08 = 68,279,161.68 : x - Step 2: Convert to fraction form
165,430,017.36/248,145,337.08 = 68,279,161.68/x - Step 3: Cross multiply
165,430,017.36x = 248,145,337.08 × 68,279,161.68 - Step 4: Simplify right side
165,430,017.36x = 16,943,155,590,623,422 - Step 5: Solve for x
x = 16,943,155,590,623,422/165,430,017.36 - Step 6: Final answer
x = 102,418,870.90
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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.