Finding the Fourth Proportional to 1,126,728,793.20, 1,553,089,161.78 and 888,184,968.06
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Solution
The fourth proportional to 1,126,728,793.20, 1,553,089,161.78 and 888,184,968.06 is: 1,224,279,042.02
Step by Step Solution
- Step 1: Write the proportion equation
1,126,728,793.20 : 1,553,089,161.78 = 888,184,968.06 : x - Step 2: Convert to fraction form
1,126,728,793.20/1,553,089,161.78 = 888,184,968.06/x - Step 3: Cross multiply
1,126,728,793.20x = 1,553,089,161.78 × 888,184,968.06 - Step 4: Simplify right side
1,126,728,793.20x = 1,379,430,447,549,901,312 - Step 5: Solve for x
x = 1,379,430,447,549,901,312/1,126,728,793.20 - Step 6: Final answer
x = 1,224,279,042.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.