Finding the Fourth Proportional to 88,128,347.80, 132,192,521.70 and 71,122,235.80
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Solution
The fourth proportional to 88,128,347.80, 132,192,521.70 and 71,122,235.80 is: 106,683,353.70
Step by Step Solution
- Step 1: Write the proportion equation
88,128,347.80 : 132,192,521.70 = 71,122,235.80 : x - Step 2: Convert to fraction form
88,128,347.80/132,192,521.70 = 71,122,235.80/x - Step 3: Cross multiply
88,128,347.80x = 132,192,521.70 × 71,122,235.80 - Step 4: Simplify right side
88,128,347.80x = 9,401,827,699,344,016 - Step 5: Solve for x
x = 9,401,827,699,344,016/88,128,347.80 - Step 6: Final answer
x = 106,683,353.70
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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.