Finding the Fourth Proportional to 1,770,427,276.80, 2,655,640,915.20 and 899,714,342.40
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Solution
The fourth proportional to 1,770,427,276.80, 2,655,640,915.20 and 899,714,342.40 is: 1,349,571,513.60
Step by Step Solution
- Step 1: Write the proportion equation
1,770,427,276.80 : 2,655,640,915.20 = 899,714,342.40 : x - Step 2: Convert to fraction form
1,770,427,276.80/2,655,640,915.20 = 899,714,342.40/x - Step 3: Cross multiply
1,770,427,276.80x = 2,655,640,915.20 × 899,714,342.40 - Step 4: Simplify right side
1,770,427,276.80x = 2,389,318,219,669,702,144 - Step 5: Solve for x
x = 2,389,318,219,669,702,144/1,770,427,276.80 - Step 6: Final answer
x = 1,349,571,513.60
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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.