Finding the Fourth Proportional to 1,126,728,749.70, 1,553,089,101.75 and 888,184,924.56
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Solution
The fourth proportional to 1,126,728,749.70, 1,553,089,101.75 and 888,184,924.56 is: 1,224,278,982.00
Step by Step Solution
- Step 1: Write the proportion equation
1,126,728,749.70 : 1,553,089,101.75 = 888,184,924.56 : x - Step 2: Convert to fraction form
1,126,728,749.70/1,553,089,101.75 = 888,184,924.56/x - Step 3: Cross multiply
1,126,728,749.70x = 1,553,089,101.75 × 888,184,924.56 - Step 4: Simplify right side
1,126,728,749.70x = 1,379,430,326,670,977,792 - Step 5: Solve for x
x = 1,379,430,326,670,977,792/1,126,728,749.70 - Step 6: Final answer
x = 1,224,278,982.00
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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.