Finding the Fourth Proportional to 209,615,273.20, 289,257,272.80 and 115,529,135.06
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Solution
The fourth proportional to 209,615,273.20, 289,257,272.80 and 115,529,135.06 is: 159,423,700.51
Step by Step Solution
- Step 1: Write the proportion equation
209,615,273.20 : 289,257,272.80 = 115,529,135.06 : x - Step 2: Convert to fraction form
209,615,273.20/289,257,272.80 = 115,529,135.06/x - Step 3: Cross multiply
209,615,273.20x = 289,257,272.80 × 115,529,135.06 - Step 4: Simplify right side
209,615,273.20x = 33,417,642,536,181,304 - Step 5: Solve for x
x = 33,417,642,536,181,304/209,615,273.20 - Step 6: Final answer
x = 159,423,700.51
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.