Finding the Fourth Proportional to 1,130,699,455.44, 1,560,342,871.50 and 628,897,444.90
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Solution
The fourth proportional to 1,130,699,455.44, 1,560,342,871.50 and 628,897,444.90 is: 867,866,027.82
Step by Step Solution
- Step 1: Write the proportion equation
1,130,699,455.44 : 1,560,342,871.50 = 628,897,444.90 : x - Step 2: Convert to fraction form
1,130,699,455.44/1,560,342,871.50 = 628,897,444.90/x - Step 3: Cross multiply
1,130,699,455.44x = 1,560,342,871.50 × 628,897,444.90 - Step 4: Simplify right side
1,130,699,455.44x = 981,295,645,054,279,040 - Step 5: Solve for x
x = 981,295,645,054,279,040/1,130,699,455.44 - Step 6: Final answer
x = 867,866,027.82
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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.