Finding the Fourth Proportional to 54,457,814.70, 81,686,722.05 and 47,739,350.70
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Solution
The fourth proportional to 54,457,814.70, 81,686,722.05 and 47,739,350.70 is: 71,609,026.05
Step by Step Solution
- Step 1: Write the proportion equation
54,457,814.70 : 81,686,722.05 = 47,739,350.70 : x - Step 2: Convert to fraction form
54,457,814.70/81,686,722.05 = 47,739,350.70/x - Step 3: Cross multiply
54,457,814.70x = 81,686,722.05 × 47,739,350.70 - Step 4: Simplify right side
54,457,814.70x = 3,899,671,071,478,373 - Step 5: Solve for x
x = 3,899,671,071,478,373/54,457,814.70 - Step 6: Final answer
x = 71,609,026.05
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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.