Finding the Fourth Proportional to 122,912,124.60, 184,368,186.90 and 84,170,075.70
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Solution
The fourth proportional to 122,912,124.60, 184,368,186.90 and 84,170,075.70 is: 126,255,113.55
Step by Step Solution
- Step 1: Write the proportion equation
122,912,124.60 : 184,368,186.90 = 84,170,075.70 : x - Step 2: Convert to fraction form
122,912,124.60/184,368,186.90 = 84,170,075.70/x - Step 3: Cross multiply
122,912,124.60x = 184,368,186.90 × 84,170,075.70 - Step 4: Simplify right side
122,912,124.60x = 15,518,284,248,044,750 - Step 5: Solve for x
x = 15,518,284,248,044,750/122,912,124.60 - Step 6: Final answer
x = 126,255,113.55
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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.