Finding the Fourth Proportional to 256,788,010.49, 354,368,134.05 and 139,313,337.08
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Solution
The fourth proportional to 256,788,010.49, 354,368,134.05 and 139,313,337.08 is: 192,252,773.85
Step by Step Solution
- Step 1: Write the proportion equation
256,788,010.49 : 354,368,134.05 = 139,313,337.08 : x - Step 2: Convert to fraction form
256,788,010.49/354,368,134.05 = 139,313,337.08/x - Step 3: Cross multiply
256,788,010.49x = 354,368,134.05 × 139,313,337.08 - Step 4: Simplify right side
256,788,010.49x = 49,368,207,309,318,280 - Step 5: Solve for x
x = 49,368,207,309,318,280/256,788,010.49 - Step 6: Final answer
x = 192,252,773.85
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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.