Finding the Fourth Proportional to 85,839,478.70, 128,782,027.65 and 37,296,502.70
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Solution
The fourth proportional to 85,839,478.70, 128,782,027.65 and 37,296,502.70 is: 55,954,664.62
Step by Step Solution
- Step 1: Write the proportion equation
85,839,478.70 : 128,782,027.65 = 37,296,502.70 : x - Step 2: Convert to fraction form
85,839,478.70/128,782,027.65 = 37,296,502.70/x - Step 3: Cross multiply
85,839,478.70x = 128,782,027.65 × 37,296,502.70 - Step 4: Simplify right side
85,839,478.70x = 4,803,119,241,959,700 - Step 5: Solve for x
x = 4,803,119,241,959,700/85,839,478.70 - Step 6: Final answer
x = 55,954,664.62
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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.