Finding the Fourth Proportional to 98,769,073.29, 136,276,697.61 and 56,965,924.23
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Solution
The fourth proportional to 98,769,073.29, 136,276,697.61 and 56,965,924.23 is: 78,598,773.60
Step by Step Solution
- Step 1: Write the proportion equation
98,769,073.29 : 136,276,697.61 = 56,965,924.23 : x - Step 2: Convert to fraction form
98,769,073.29/136,276,697.61 = 56,965,924.23/x - Step 3: Cross multiply
98,769,073.29x = 136,276,697.61 × 56,965,924.23 - Step 4: Simplify right side
98,769,073.29x = 7,763,128,030,365,882 - Step 5: Solve for x
x = 7,763,128,030,365,882/98,769,073.29 - Step 6: Final answer
x = 78,598,773.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.