Finding the Fourth Proportional to 5,378,559.79, 8,069,545.19 and 1,920,225.28
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Solution
The fourth proportional to 5,378,559.79, 8,069,545.19 and 1,920,225.28 is: 2,880,946.80
Step by Step Solution
- Step 1: Write the proportion equation
5,378,559.79 : 8,069,545.19 = 1,920,225.28 : x - Step 2: Convert to fraction form
5,378,559.79/8,069,545.19 = 1,920,225.28/x - Step 3: Cross multiply
5,378,559.79x = 8,069,545.19 × 1,920,225.28 - Step 4: Simplify right side
5,378,559.79x = 15,495,344,621,991.55 - Step 5: Solve for x
x = 15,495,344,621,991.55/5,378,559.79 - Step 6: Final answer
x = 2,880,946.80
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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.