Finding the Fourth Proportional to 1,417,180,165.40, 2,125,770,248.10 and 640,851,152.60
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Solution
The fourth proportional to 1,417,180,165.40, 2,125,770,248.10 and 640,851,152.60 is: 961,276,728.90
Step by Step Solution
- Step 1: Write the proportion equation
1,417,180,165.40 : 2,125,770,248.10 = 640,851,152.60 : x - Step 2: Convert to fraction form
1,417,180,165.40/2,125,770,248.10 = 640,851,152.60/x - Step 3: Cross multiply
1,417,180,165.40x = 2,125,770,248.10 × 640,851,152.60 - Step 4: Simplify right side
1,417,180,165.40x = 1,362,302,313,657,672,960 - Step 5: Solve for x
x = 1,362,302,313,657,672,960/1,417,180,165.40 - Step 6: Final answer
x = 961,276,728.90
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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.