Finding the Fourth Proportional to 1,254,235,129.74, 1,881,231,126.30 and 380,844,174.96
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Solution
The fourth proportional to 1,254,235,129.74, 1,881,231,126.30 and 380,844,174.96 is: 571,229,348.64
Step by Step Solution
- Step 1: Write the proportion equation
1,254,235,129.74 : 1,881,231,126.30 = 380,844,174.96 : x - Step 2: Convert to fraction form
1,254,235,129.74/1,881,231,126.30 = 380,844,174.96/x - Step 3: Cross multiply
1,254,235,129.74x = 1,881,231,126.30 × 380,844,174.96 - Step 4: Simplify right side
1,254,235,129.74x = 716,455,916,204,795,008 - Step 5: Solve for x
x = 716,455,916,204,795,008/1,254,235,129.74 - Step 6: Final answer
x = 571,229,348.64
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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.