Finding the Fourth Proportional to 10,430,164.20, 15,645,246.30 and 5,328,330.60
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Solution
The fourth proportional to 10,430,164.20, 15,645,246.30 and 5,328,330.60 is: 7,992,495.90
Step by Step Solution
- Step 1: Write the proportion equation
10,430,164.20 : 15,645,246.30 = 5,328,330.60 : x - Step 2: Convert to fraction form
10,430,164.20/15,645,246.30 = 5,328,330.60/x - Step 3: Cross multiply
10,430,164.20x = 15,645,246.30 × 5,328,330.60 - Step 4: Simplify right side
10,430,164.20x = 83,363,044,604,826.78 - Step 5: Solve for x
x = 83,363,044,604,826.78/10,430,164.20 - Step 6: Final answer
x = 7,992,495.90
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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.