Finding the Fourth Proportional to 31,866,764,432.18, 43,979,991,165.42 and 18,136,896,088.05
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Solution
The fourth proportional to 31,866,764,432.18, 43,979,991,165.42 and 18,136,896,088.05 is: 25,031,111,376.82
Step by Step Solution
- Step 1: Write the proportion equation
31,866,764,432.18 : 43,979,991,165.42 = 18,136,896,088.05 : x - Step 2: Convert to fraction form
31,866,764,432.18/43,979,991,165.42 = 18,136,896,088.05/x - Step 3: Cross multiply
31,866,764,432.18x = 43,979,991,165.42 × 18,136,896,088.05 - Step 4: Simplify right side
31,866,764,432.18x = 797,660,529,720,579,457,024 - Step 5: Solve for x
x = 797,660,529,720,579,457,024/31,866,764,432.18 - Step 6: Final answer
x = 25,031,111,376.82
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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.