Finding the Fourth Proportional to 258,850,653, 356,977,321.98 and 202,342,864.38
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Solution
The fourth proportional to 258,850,653, 356,977,321.98 and 202,342,864.38 is: 279,048,219.55
Step by Step Solution
- Step 1: Write the proportion equation
258,850,653 : 356,977,321.98 = 202,342,864.38 : x - Step 2: Convert to fraction form
258,850,653/356,977,321.98 = 202,342,864.38/x - Step 3: Cross multiply
258,850,653x = 356,977,321.98 × 202,342,864.38 - Step 4: Simplify right side
258,850,653x = 72,231,813,848,134,736 - Step 5: Solve for x
x = 72,231,813,848,134,736/258,850,653 - Step 6: Final answer
x = 279,048,219.55
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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.