Finding the Fourth Proportional to 10,516,219.30, 15,774,328.95 and 10,020,207.70
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Solution
The fourth proportional to 10,516,219.30, 15,774,328.95 and 10,020,207.70 is: 15,030,311.55
Step by Step Solution
- Step 1: Write the proportion equation
10,516,219.30 : 15,774,328.95 = 10,020,207.70 : x - Step 2: Convert to fraction form
10,516,219.30/15,774,328.95 = 10,020,207.70/x - Step 3: Cross multiply
10,516,219.30x = 15,774,328.95 × 10,020,207.70 - Step 4: Simplify right side
10,516,219.30x = 158,062,052,407,122.91 - Step 5: Solve for x
x = 158,062,052,407,122.91/10,516,219.30 - Step 6: Final answer
x = 15,030,311.55
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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.