Finding the Fourth Proportional to 1,736,264,491.20, 2,607,420,045.60 and 919,971,115.20
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Solution
The fourth proportional to 1,736,264,491.20, 2,607,420,045.60 and 919,971,115.20 is: 1,381,558,592.77
Step by Step Solution
- Step 1: Write the proportion equation
1,736,264,491.20 : 2,607,420,045.60 = 919,971,115.20 : x - Step 2: Convert to fraction form
1,736,264,491.20/2,607,420,045.60 = 919,971,115.20/x - Step 3: Cross multiply
1,736,264,491.20x = 2,607,420,045.60 × 919,971,115.20 - Step 4: Simplify right side
1,736,264,491.20x = 2,398,751,127,145,466,880 - Step 5: Solve for x
x = 2,398,751,127,145,466,880/1,736,264,491.20 - Step 6: Final answer
x = 1,381,558,592.77
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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.