Finding the Fourth Proportional to 202,084,938.81, 278,875,592.69 and 117,319,923.81
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Solution
The fourth proportional to 202,084,938.81, 278,875,592.69 and 117,319,923.81 is: 161,900,552.70
Step by Step Solution
- Step 1: Write the proportion equation
202,084,938.81 : 278,875,592.69 = 117,319,923.81 : x - Step 2: Convert to fraction form
202,084,938.81/278,875,592.69 = 117,319,923.81/x - Step 3: Cross multiply
202,084,938.81x = 278,875,592.69 × 117,319,923.81 - Step 4: Simplify right side
202,084,938.81x = 32,717,663,286,272,796 - Step 5: Solve for x
x = 32,717,663,286,272,796/202,084,938.81 - Step 6: Final answer
x = 161,900,552.70
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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.