Finding the Fourth Proportional to 1,174,233,765.11, 1,620,346,756.42 and 691,349,495.92
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Solution
The fourth proportional to 1,174,233,765.11, 1,620,346,756.42 and 691,349,495.92 is: 954,005,877.32
Step by Step Solution
- Step 1: Write the proportion equation
1,174,233,765.11 : 1,620,346,756.42 = 691,349,495.92 : x - Step 2: Convert to fraction form
1,174,233,765.11/1,620,346,756.42 = 691,349,495.92/x - Step 3: Cross multiply
1,174,233,765.11x = 1,620,346,756.42 × 691,349,495.92 - Step 4: Simplify right side
1,174,233,765.11x = 1,120,225,913,263,117,184 - Step 5: Solve for x
x = 1,120,225,913,263,117,184/1,174,233,765.11 - Step 6: Final answer
x = 954,005,877.32
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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.