Finding the Fourth Proportional to 128,797,393.08, 193,155,101.46 and 42,519,735.48
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Solution
The fourth proportional to 128,797,393.08, 193,155,101.46 and 42,519,735.48 is: 63,766,071.85
Step by Step Solution
- Step 1: Write the proportion equation
128,797,393.08 : 193,155,101.46 = 42,519,735.48 : x - Step 2: Convert to fraction form
128,797,393.08/193,155,101.46 = 42,519,735.48/x - Step 3: Cross multiply
128,797,393.08x = 193,155,101.46 × 42,519,735.48 - Step 4: Simplify right side
128,797,393.08x = 8,212,903,820,691,762 - Step 5: Solve for x
x = 8,212,903,820,691,762/128,797,393.08 - Step 6: Final answer
x = 63,766,071.85
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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.