Finding the Fourth Proportional to 7,766,315.71, 11,651,155.14 and 2,974,005.19
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Solution
The fourth proportional to 7,766,315.71, 11,651,155.14 and 2,974,005.19 is: 4,461,651.72
Step by Step Solution
- Step 1: Write the proportion equation
7,766,315.71 : 11,651,155.14 = 2,974,005.19 : x - Step 2: Convert to fraction form
7,766,315.71/11,651,155.14 = 2,974,005.19/x - Step 3: Cross multiply
7,766,315.71x = 11,651,155.14 × 2,974,005.19 - Step 4: Simplify right side
7,766,315.71x = 34,650,595,855,855.18 - Step 5: Solve for x
x = 34,650,595,855,855.18/7,766,315.71 - Step 6: Final answer
x = 4,461,651.72
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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.