Finding the Fourth Proportional to 87,893,800.80, 131,575,280.40 and 77,276,968.80
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Solution
The fourth proportional to 87,893,800.80, 131,575,280.40 and 77,276,968.80 is: 115,682,093.00
Step by Step Solution
- Step 1: Write the proportion equation
87,893,800.80 : 131,575,280.40 = 77,276,968.80 : x - Step 2: Convert to fraction form
87,893,800.80/131,575,280.40 = 77,276,968.80/x - Step 3: Cross multiply
87,893,800.80x = 131,575,280.40 × 77,276,968.80 - Step 4: Simplify right side
87,893,800.80x = 10,167,738,838,322,052 - Step 5: Solve for x
x = 10,167,738,838,322,052/87,893,800.80 - Step 6: Final answer
x = 115,682,093.00
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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.