Finding the Fourth Proportional to 1,112,394,620.12, 1,534,406,312.34 and 659,952,265.75
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Solution
The fourth proportional to 1,112,394,620.12, 1,534,406,312.34 and 659,952,265.75 is: 910,319,866.79
Step by Step Solution
- Step 1: Write the proportion equation
1,112,394,620.12 : 1,534,406,312.34 = 659,952,265.75 : x - Step 2: Convert to fraction form
1,112,394,620.12/1,534,406,312.34 = 659,952,265.75/x - Step 3: Cross multiply
1,112,394,620.12x = 1,534,406,312.34 × 659,952,265.75 - Step 4: Simplify right side
1,112,394,620.12x = 1,012,634,922,410,953,728 - Step 5: Solve for x
x = 1,012,634,922,410,953,728/1,112,394,620.12 - Step 6: Final answer
x = 910,319,866.79
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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.