Finding the Fourth Proportional to 54,457,801.20, 81,686,701.80 and 47,739,337.20
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Solution
The fourth proportional to 54,457,801.20, 81,686,701.80 and 47,739,337.20 is: 71,609,005.80
Step by Step Solution
- Step 1: Write the proportion equation
54,457,801.20 : 81,686,701.80 = 47,739,337.20 : x - Step 2: Convert to fraction form
54,457,801.20/81,686,701.80 = 47,739,337.20/x - Step 3: Cross multiply
54,457,801.20x = 81,686,701.80 × 47,739,337.20 - Step 4: Simplify right side
54,457,801.20x = 3,899,669,001,986,047 - Step 5: Solve for x
x = 3,899,669,001,986,047/54,457,801.20 - Step 6: Final answer
x = 71,609,005.80
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1.5x scale
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.