Finding the Fourth Proportional to 2,146,641,909.36, 2,962,375,866.84 and 1,219,544,749.68
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Solution
The fourth proportional to 2,146,641,909.36, 2,962,375,866.84 and 1,219,544,749.68 is: 1,682,977,453.87
Step by Step Solution
- Step 1: Write the proportion equation
2,146,641,909.36 : 2,962,375,866.84 = 1,219,544,749.68 : x - Step 2: Convert to fraction form
2,146,641,909.36/2,962,375,866.84 = 1,219,544,749.68/x - Step 3: Cross multiply
2,146,641,909.36x = 2,962,375,866.84 × 1,219,544,749.68 - Step 4: Simplify right side
2,146,641,909.36x = 3,612,749,934,983,461,376 - Step 5: Solve for x
x = 3,612,749,934,983,461,376/2,146,641,909.36 - Step 6: Final answer
x = 1,682,977,453.87
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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.