Finding the Fourth Proportional to 239,696,656.70, 330,687,270.51 and 139,207,987.76
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Solution
The fourth proportional to 239,696,656.70, 330,687,270.51 and 139,207,987.76 is: 192,052,363.76
Step by Step Solution
- Step 1: Write the proportion equation
239,696,656.70 : 330,687,270.51 = 139,207,987.76 : x - Step 2: Convert to fraction form
239,696,656.70/330,687,270.51 = 139,207,987.76/x - Step 3: Cross multiply
239,696,656.70x = 330,687,270.51 × 139,207,987.76 - Step 4: Simplify right side
239,696,656.70x = 46,034,309,505,543,888 - Step 5: Solve for x
x = 46,034,309,505,543,888/239,696,656.70 - Step 6: Final answer
x = 192,052,363.76
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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.