Finding the Fourth Proportional to 119,873,331.66, 165,425,197.74 and 64,869,188.16
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Solution
The fourth proportional to 119,873,331.66, 165,425,197.74 and 64,869,188.16 is: 89,519,479.69
Step by Step Solution
- Step 1: Write the proportion equation
119,873,331.66 : 165,425,197.74 = 64,869,188.16 : x - Step 2: Convert to fraction form
119,873,331.66/165,425,197.74 = 64,869,188.16/x - Step 3: Cross multiply
119,873,331.66x = 165,425,197.74 × 64,869,188.16 - Step 4: Simplify right side
119,873,331.66x = 10,730,998,278,601,266 - Step 5: Solve for x
x = 10,730,998,278,601,266/119,873,331.66 - Step 6: Final answer
x = 89,519,479.69
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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.