Finding the Fourth Proportional to 1,262,461,440.98, 1,742,250,593.25 and 705,544,471.62
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Solution
The fourth proportional to 1,262,461,440.98, 1,742,250,593.25 and 705,544,471.62 is: 973,681,440.35
Step by Step Solution
- Step 1: Write the proportion equation
1,262,461,440.98 : 1,742,250,593.25 = 705,544,471.62 : x - Step 2: Convert to fraction form
1,262,461,440.98/1,742,250,593.25 = 705,544,471.62/x - Step 3: Cross multiply
1,262,461,440.98x = 1,742,250,593.25 × 705,544,471.62 - Step 4: Simplify right side
1,262,461,440.98x = 1,229,235,274,244,202,752 - Step 5: Solve for x
x = 1,229,235,274,244,202,752/1,262,461,440.98 - Step 6: Final answer
x = 973,681,440.35
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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.