Finding the Fourth Proportional to 415,872,109.98, 573,899,585.67 and 239,595,361.02
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Solution
The fourth proportional to 415,872,109.98, 573,899,585.67 and 239,595,361.02 is: 330,639,336.27
Step by Step Solution
- Step 1: Write the proportion equation
415,872,109.98 : 573,899,585.67 = 239,595,361.02 : x - Step 2: Convert to fraction form
415,872,109.98/573,899,585.67 = 239,595,361.02/x - Step 3: Cross multiply
415,872,109.98x = 573,899,585.67 × 239,595,361.02 - Step 4: Simplify right side
415,872,109.98x = 137,503,678,417,832,064 - Step 5: Solve for x
x = 137,503,678,417,832,064/415,872,109.98 - Step 6: Final answer
x = 330,639,336.27
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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.