Finding the Fourth Proportional to 316,680,259.20, 474,743,908.80 and 122,724,009.60
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Solution
The fourth proportional to 316,680,259.20, 474,743,908.80 and 122,724,009.60 is: 183,978,869.31
Step by Step Solution
- Step 1: Write the proportion equation
316,680,259.20 : 474,743,908.80 = 122,724,009.60 : x - Step 2: Convert to fraction form
316,680,259.20/474,743,908.80 = 122,724,009.60/x - Step 3: Cross multiply
316,680,259.20x = 474,743,908.80 × 122,724,009.60 - Step 4: Simplify right side
316,680,259.20x = 58,262,476,021,112,720 - Step 5: Solve for x
x = 58,262,476,021,112,720/316,680,259.20 - Step 6: Final answer
x = 183,978,869.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.