Finding the Fourth Proportional to 90,669,199.68, 125,119,852.32 and 49,415,206.08
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Solution
The fourth proportional to 90,669,199.68, 125,119,852.32 and 49,415,206.08 is: 68,190,998.81
Step by Step Solution
- Step 1: Write the proportion equation
90,669,199.68 : 125,119,852.32 = 49,415,206.08 : x - Step 2: Convert to fraction form
90,669,199.68/125,119,852.32 = 49,415,206.08/x - Step 3: Cross multiply
90,669,199.68x = 125,119,852.32 × 49,415,206.08 - Step 4: Simplify right side
90,669,199.68x = 6,182,823,287,091,966 - Step 5: Solve for x
x = 6,182,823,287,091,966/90,669,199.68 - Step 6: Final answer
x = 68,190,998.81
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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.