Finding the Fourth Proportional to 1,347,529,615.40, 2,021,294,423.10 and 823,741,365.80
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Solution
The fourth proportional to 1,347,529,615.40, 2,021,294,423.10 and 823,741,365.80 is: 1,235,612,048.70
Step by Step Solution
- Step 1: Write the proportion equation
1,347,529,615.40 : 2,021,294,423.10 = 823,741,365.80 : x - Step 2: Convert to fraction form
1,347,529,615.40/2,021,294,423.10 = 823,741,365.80/x - Step 3: Cross multiply
1,347,529,615.40x = 2,021,294,423.10 × 823,741,365.80 - Step 4: Simplify right side
1,347,529,615.40x = 1,665,023,828,768,316,928 - Step 5: Solve for x
x = 1,665,023,828,768,316,928/1,347,529,615.40 - Step 6: Final answer
x = 1,235,612,048.70
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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.