Finding the Fourth Proportional to 513,137,245.56, 708,134,947.98 and 301,452,998.70
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Solution
The fourth proportional to 513,137,245.56, 708,134,947.98 and 301,452,998.70 is: 416,008,398.14
Step by Step Solution
- Step 1: Write the proportion equation
513,137,245.56 : 708,134,947.98 = 301,452,998.70 : x - Step 2: Convert to fraction form
513,137,245.56/708,134,947.98 = 301,452,998.70/x - Step 3: Cross multiply
513,137,245.56x = 708,134,947.98 × 301,452,998.70 - Step 4: Simplify right side
513,137,245.56x = 213,469,403,552,839,520 - Step 5: Solve for x
x = 213,469,403,552,839,520/513,137,245.56 - Step 6: Final answer
x = 416,008,398.14
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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.