Finding the Fourth Proportional to 408,070,858.70, 572,508,525.70 and 408,070,858.70
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Solution
The fourth proportional to 408,070,858.70, 572,508,525.70 and 408,070,858.70 is: 572,508,525.70
Step by Step Solution
- Step 1: Write the proportion equation
408,070,858.70 : 572,508,525.70 = 408,070,858.70 : x - Step 2: Convert to fraction form
408,070,858.70/572,508,525.70 = 408,070,858.70/x - Step 3: Cross multiply
408,070,858.70x = 572,508,525.70 × 408,070,858.70 - Step 4: Simplify right side
408,070,858.70x = 233,624,045,695,470,016 - Step 5: Solve for x
x = 233,624,045,695,470,016/408,070,858.70 - Step 6: Final answer
x = 572,508,525.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.