Finding the Fourth Proportional to 142,441,727.70, 213,886,540.35 and 81,975,551.70
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Solution
The fourth proportional to 142,441,727.70, 213,886,540.35 and 81,975,551.70 is: 123,092,210.61
Step by Step Solution
- Step 1: Write the proportion equation
142,441,727.70 : 213,886,540.35 = 81,975,551.70 : x - Step 2: Convert to fraction form
142,441,727.70/213,886,540.35 = 81,975,551.70/x - Step 3: Cross multiply
142,441,727.70x = 213,886,540.35 × 81,975,551.70 - Step 4: Simplify right side
142,441,727.70x = 17,533,467,146,395,562 - Step 5: Solve for x
x = 17,533,467,146,395,562/142,441,727.70 - Step 6: Final answer
x = 123,092,210.61
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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.