Finding the Fourth Proportional to 7,129,219.80, 10,693,829.70 and 5,948,239.80
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Solution
The fourth proportional to 7,129,219.80, 10,693,829.70 and 5,948,239.80 is: 8,922,359.70
Step by Step Solution
- Step 1: Write the proportion equation
7,129,219.80 : 10,693,829.70 = 5,948,239.80 : x - Step 2: Convert to fraction form
7,129,219.80/10,693,829.70 = 5,948,239.80/x - Step 3: Cross multiply
7,129,219.80x = 10,693,829.70 × 5,948,239.80 - Step 4: Simplify right side
7,129,219.80x = 63,609,463,435,962.05 - Step 5: Solve for x
x = 63,609,463,435,962.05/7,129,219.80 - Step 6: Final answer
x = 8,922,359.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.