Finding the Fourth Proportional to 122,318,197.20, 183,477,295.80 and 117,615,272.40
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Solution
The fourth proportional to 122,318,197.20, 183,477,295.80 and 117,615,272.40 is: 176,422,908.60
Step by Step Solution
- Step 1: Write the proportion equation
122,318,197.20 : 183,477,295.80 = 117,615,272.40 : x - Step 2: Convert to fraction form
122,318,197.20/183,477,295.80 = 117,615,272.40/x - Step 3: Cross multiply
122,318,197.20x = 183,477,295.80 × 117,615,272.40 - Step 4: Simplify right side
122,318,197.20x = 21,579,732,124,732,380 - Step 5: Solve for x
x = 21,579,732,124,732,380/122,318,197.20 - Step 6: Final answer
x = 176,422,908.60
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1.5x scale
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.