Finding the Fourth Proportional to 81,044,636.58, 121,615,371.50 and 74,450,991.96
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Solution
The fourth proportional to 81,044,636.58, 121,615,371.50 and 74,450,991.96 is: 111,720,965.48
Step by Step Solution
- Step 1: Write the proportion equation
81,044,636.58 : 121,615,371.50 = 74,450,991.96 : x - Step 2: Convert to fraction form
81,044,636.58/121,615,371.50 = 74,450,991.96/x - Step 3: Cross multiply
81,044,636.58x = 121,615,371.50 × 74,450,991.96 - Step 4: Simplify right side
81,044,636.58x = 9,054,385,045,386,658 - Step 5: Solve for x
x = 9,054,385,045,386,658/81,044,636.58 - Step 6: Final answer
x = 111,720,965.48
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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.