Finding the Fourth Proportional to 67,455,581.19, 93,089,343.38 and 39,578,765.63
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Solution
The fourth proportional to 67,455,581.19, 93,089,343.38 and 39,578,765.63 is: 54,619,072.86
Step by Step Solution
- Step 1: Write the proportion equation
67,455,581.19 : 93,089,343.38 = 39,578,765.63 : x - Step 2: Convert to fraction form
67,455,581.19/93,089,343.38 = 39,578,765.63/x - Step 3: Cross multiply
67,455,581.19x = 93,089,343.38 × 39,578,765.63 - Step 4: Simplify right side
67,455,581.19x = 3,684,361,303,624,271.50 - Step 5: Solve for x
x = 3,684,361,303,624,271.50/67,455,581.19 - Step 6: Final answer
x = 54,619,072.86
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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.