Finding the Fourth Proportional to 283,247,823.36, 390,505,074.66 and 212,381,937.48
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Solution
The fourth proportional to 283,247,823.36, 390,505,074.66 and 212,381,937.48 is: 292,804,454.31
Step by Step Solution
- Step 1: Write the proportion equation
283,247,823.36 : 390,505,074.66 = 212,381,937.48 : x - Step 2: Convert to fraction form
283,247,823.36/390,505,074.66 = 212,381,937.48/x - Step 3: Cross multiply
283,247,823.36x = 390,505,074.66 × 212,381,937.48 - Step 4: Simplify right side
283,247,823.36x = 82,936,224,352,062,848 - Step 5: Solve for x
x = 82,936,224,352,062,848/283,247,823.36 - Step 6: Final answer
x = 292,804,454.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.