Finding the Fourth Proportional to 106,519,489.20, 159,779,233.80 and 87,371,866.80
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Solution
The fourth proportional to 106,519,489.20, 159,779,233.80 and 87,371,866.80 is: 131,057,800.20
Step by Step Solution
- Step 1: Write the proportion equation
106,519,489.20 : 159,779,233.80 = 87,371,866.80 : x - Step 2: Convert to fraction form
106,519,489.20/159,779,233.80 = 87,371,866.80/x - Step 3: Cross multiply
106,519,489.20x = 159,779,233.80 × 87,371,866.80 - Step 4: Simplify right side
106,519,489.20x = 13,960,209,932,979,658 - Step 5: Solve for x
x = 13,960,209,932,979,658/106,519,489.20 - Step 6: Final answer
x = 131,057,800.20
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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.