Finding the Fourth Proportional to 38,762,764.76, 53,490,205.13 and 21,358,136.00
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Solution
The fourth proportional to 38,762,764.76, 53,490,205.13 and 21,358,136.00 is: 29,472,899.65
Step by Step Solution
- Step 1: Write the proportion equation
38,762,764.76 : 53,490,205.13 = 21,358,136.00 : x - Step 2: Convert to fraction form
38,762,764.76/53,490,205.13 = 21,358,136.00/x - Step 3: Cross multiply
38,762,764.76x = 53,490,205.13 × 21,358,136.00 - Step 4: Simplify right side
38,762,764.76x = 1,142,451,076,021,558.50 - Step 5: Solve for x
x = 1,142,451,076,021,558.50/38,762,764.76 - Step 6: Final answer
x = 29,472,899.65
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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.