Finding the Fourth Proportional to 369,309,820.84, 509,659,633.98 and 202,042,201.73
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Solution
The fourth proportional to 369,309,820.84, 509,659,633.98 and 202,042,201.73 is: 278,824,847.78
Step by Step Solution
- Step 1: Write the proportion equation
369,309,820.84 : 509,659,633.98 = 202,042,201.73 : x - Step 2: Convert to fraction form
369,309,820.84/509,659,633.98 = 202,042,201.73/x - Step 3: Cross multiply
369,309,820.84x = 509,659,633.98 × 202,042,201.73 - Step 4: Simplify right side
369,309,820.84x = 102,972,754,580,830,384 - Step 5: Solve for x
x = 102,972,754,580,830,384/369,309,820.84 - Step 6: Final answer
x = 278,824,847.78
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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.