Finding the Fourth Proportional to 314,930,285.20, 472,395,427.80 and 286,232,471.20
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Solution
The fourth proportional to 314,930,285.20, 472,395,427.80 and 286,232,471.20 is: 429,348,706.80
Step by Step Solution
- Step 1: Write the proportion equation
314,930,285.20 : 472,395,427.80 = 286,232,471.20 : x - Step 2: Convert to fraction form
314,930,285.20/472,395,427.80 = 286,232,471.20/x - Step 3: Cross multiply
314,930,285.20x = 472,395,427.80 × 286,232,471.20 - Step 4: Simplify right side
314,930,285.20x = 135,214,910,682,775,184 - Step 5: Solve for x
x = 135,214,910,682,775,184/314,930,285.20 - Step 6: Final answer
x = 429,348,706.80
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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.