Finding the Fourth Proportional to 354,639,642.90, 531,063,669.15 and 232,811,495.70
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Solution
The fourth proportional to 354,639,642.90, 531,063,669.15 and 232,811,495.70 is: 348,629,177.82
Step by Step Solution
- Step 1: Write the proportion equation
354,639,642.90 : 531,063,669.15 = 232,811,495.70 : x - Step 2: Convert to fraction form
354,639,642.90/531,063,669.15 = 232,811,495.70/x - Step 3: Cross multiply
354,639,642.90x = 531,063,669.15 × 232,811,495.70 - Step 4: Simplify right side
354,639,642.90x = 123,637,727,126,741,440 - Step 5: Solve for x
x = 123,637,727,126,741,440/354,639,642.90 - Step 6: Final answer
x = 348,629,177.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.