Finding the Fourth Proportional to 10,881,277.98, 15,020,205.75 and 9,347,228.70
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Solution
The fourth proportional to 10,881,277.98, 15,020,205.75 and 9,347,228.70 is: 12,902,647.88
Step by Step Solution
- Step 1: Write the proportion equation
10,881,277.98 : 15,020,205.75 = 9,347,228.70 : x - Step 2: Convert to fraction form
10,881,277.98/15,020,205.75 = 9,347,228.70/x - Step 3: Cross multiply
10,881,277.98x = 15,020,205.75 × 9,347,228.70 - Step 4: Simplify right side
10,881,277.98x = 140,397,298,266,305.02 - Step 5: Solve for x
x = 140,397,298,266,305.02/10,881,277.98 - Step 6: Final answer
x = 12,902,647.88
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1.5x scale
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.