Finding the Fourth Proportional to 9,780,107.70, 14,684,158.35 and 5,528,579.70
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Solution
The fourth proportional to 9,780,107.70, 14,684,158.35 and 5,528,579.70 is: 8,300,781.78
Step by Step Solution
- Step 1: Write the proportion equation
9,780,107.70 : 14,684,158.35 = 5,528,579.70 : x - Step 2: Convert to fraction form
9,780,107.70/14,684,158.35 = 5,528,579.70/x - Step 3: Cross multiply
9,780,107.70x = 14,684,158.35 × 5,528,579.70 - Step 4: Simplify right side
9,780,107.70x = 81,182,539,765,395.50 - Step 5: Solve for x
x = 81,182,539,765,395.50/9,780,107.70 - Step 6: Final answer
x = 8,300,781.78
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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.