Finding the Fourth Proportional to 281,668,921.60, 421,999,497.60 and 238,334,828.80
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Solution
The fourth proportional to 281,668,921.60, 421,999,497.60 and 238,334,828.80 is: 357,075,879.88
Step by Step Solution
- Step 1: Write the proportion equation
281,668,921.60 : 421,999,497.60 = 238,334,828.80 : x - Step 2: Convert to fraction form
281,668,921.60/421,999,497.60 = 238,334,828.80/x - Step 3: Cross multiply
281,668,921.60x = 421,999,497.60 × 238,334,828.80 - Step 4: Simplify right side
281,668,921.60x = 100,577,178,014,182,016 - Step 5: Solve for x
x = 100,577,178,014,182,016/281,668,921.60 - Step 6: Final answer
x = 357,075,879.88
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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.