Finding the Fourth Proportional to 133,034,995.70, 199,552,493.55 and 78,615,437.30
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Solution
The fourth proportional to 133,034,995.70, 199,552,493.55 and 78,615,437.30 is: 117,923,155.95
Step by Step Solution
- Step 1: Write the proportion equation
133,034,995.70 : 199,552,493.55 = 78,615,437.30 : x - Step 2: Convert to fraction form
133,034,995.70/199,552,493.55 = 78,615,437.30/x - Step 3: Cross multiply
133,034,995.70x = 199,552,493.55 × 78,615,437.30 - Step 4: Simplify right side
133,034,995.70x = 15,687,906,544,738,680 - Step 5: Solve for x
x = 15,687,906,544,738,680/133,034,995.70 - Step 6: Final answer
x = 117,923,155.95
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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.