Finding the Fourth Proportional to 75,156,614.80, 112,734,922.20 and 66,068,973.70
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Solution
The fourth proportional to 75,156,614.80, 112,734,922.20 and 66,068,973.70 is: 99,103,460.55
Step by Step Solution
- Step 1: Write the proportion equation
75,156,614.80 : 112,734,922.20 = 66,068,973.70 : x - Step 2: Convert to fraction form
75,156,614.80/112,734,922.20 = 66,068,973.70/x - Step 3: Cross multiply
75,156,614.80x = 112,734,922.20 × 66,068,973.70 - Step 4: Simplify right side
75,156,614.80x = 7,448,280,609,903,347 - Step 5: Solve for x
x = 7,448,280,609,903,347/75,156,614.80 - Step 6: Final answer
x = 99,103,460.55
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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.