Finding the Fourth Proportional to 97,014,059.20, 145,521,088.80 and 87,448,121.20
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Solution
The fourth proportional to 97,014,059.20, 145,521,088.80 and 87,448,121.20 is: 131,172,181.80
Step by Step Solution
- Step 1: Write the proportion equation
97,014,059.20 : 145,521,088.80 = 87,448,121.20 : x - Step 2: Convert to fraction form
97,014,059.20/145,521,088.80 = 87,448,121.20/x - Step 3: Cross multiply
97,014,059.20x = 145,521,088.80 × 87,448,121.20 - Step 4: Simplify right side
97,014,059.20x = 12,725,545,810,538,364 - Step 5: Solve for x
x = 12,725,545,810,538,364/97,014,059.20 - Step 6: Final answer
x = 131,172,181.80
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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.