Finding the Fourth Proportional to 218,776,474.53, 301,877,998.07 and 125,939,043.81
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Solution
The fourth proportional to 218,776,474.53, 301,877,998.07 and 125,939,043.81 is: 173,776,574.95
Step by Step Solution
- Step 1: Write the proportion equation
218,776,474.53 : 301,877,998.07 = 125,939,043.81 : x - Step 2: Convert to fraction form
218,776,474.53/301,877,998.07 = 125,939,043.81/x - Step 3: Cross multiply
218,776,474.53x = 301,877,998.07 × 125,939,043.81 - Step 4: Simplify right side
218,776,474.53x = 38,018,226,423,583,128 - Step 5: Solve for x
x = 38,018,226,423,583,128/218,776,474.53 - Step 6: Final answer
x = 173,776,574.95
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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.