Finding the Fourth Proportional to 243,727,073.94, 336,343,362.05 and 139,307,387.31
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Solution
The fourth proportional to 243,727,073.94, 336,343,362.05 and 139,307,387.31 is: 192,244,194.49
Step by Step Solution
- Step 1: Write the proportion equation
243,727,073.94 : 336,343,362.05 = 139,307,387.31 : x - Step 2: Convert to fraction form
243,727,073.94/336,343,362.05 = 139,307,387.31/x - Step 3: Cross multiply
243,727,073.94x = 336,343,362.05 × 139,307,387.31 - Step 4: Simplify right side
243,727,073.94x = 46,855,115,006,072,768 - Step 5: Solve for x
x = 46,855,115,006,072,768/243,727,073.94 - Step 6: Final answer
x = 192,244,194.49
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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.