Finding the Fourth Proportional to 122,272,380.36, 183,408,537.72 and 83,817,309.60
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Solution
The fourth proportional to 122,272,380.36, 183,408,537.72 and 83,817,309.60 is: 125,725,941.90
Step by Step Solution
- Step 1: Write the proportion equation
122,272,380.36 : 183,408,537.72 = 83,817,309.60 : x - Step 2: Convert to fraction form
122,272,380.36/183,408,537.72 = 83,817,309.60/x - Step 3: Cross multiply
122,272,380.36x = 183,408,537.72 × 83,817,309.60 - Step 4: Simplify right side
122,272,380.36x = 15,372,810,189,360,516 - Step 5: Solve for x
x = 15,372,810,189,360,516/122,272,380.36 - Step 6: Final answer
x = 125,725,941.90
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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.