Finding the Fourth Proportional to 405,998,443.99, 561,302,494.86 and 299,984,652.28
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Solution
The fourth proportional to 405,998,443.99, 561,302,494.86 and 299,984,652.28 is: 414,735,909.06
Step by Step Solution
- Step 1: Write the proportion equation
405,998,443.99 : 561,302,494.86 = 299,984,652.28 : x - Step 2: Convert to fraction form
405,998,443.99/561,302,494.86 = 299,984,652.28/x - Step 3: Cross multiply
405,998,443.99x = 561,302,494.86 × 299,984,652.28 - Step 4: Simplify right side
405,998,443.99x = 168,382,133,744,473,568 - Step 5: Solve for x
x = 168,382,133,744,473,568/405,998,443.99 - Step 6: Final answer
x = 414,735,909.06
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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.