Finding the Fourth Proportional to 243,727,078.68, 336,343,368.61 and 139,307,392.02
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Solution
The fourth proportional to 243,727,078.68, 336,343,368.61 and 139,307,392.02 is: 192,244,201.01
Step by Step Solution
- Step 1: Write the proportion equation
243,727,078.68 : 336,343,368.61 = 139,307,392.02 : x - Step 2: Convert to fraction form
243,727,078.68/336,343,368.61 = 139,307,392.02/x - Step 3: Cross multiply
243,727,078.68x = 336,343,368.61 × 139,307,392.02 - Step 4: Simplify right side
243,727,078.68x = 46,855,117,504,280,640 - Step 5: Solve for x
x = 46,855,117,504,280,640/243,727,078.68 - Step 6: Final answer
x = 192,244,201.01
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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.