Finding the Fourth Proportional to 85,546,943.80, 128,225,937.30 and 47,235,952.60
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Solution
The fourth proportional to 85,546,943.80, 128,225,937.30 and 47,235,952.60 is: 70,801,761.32
Step by Step Solution
- Step 1: Write the proportion equation
85,546,943.80 : 128,225,937.30 = 47,235,952.60 : x - Step 2: Convert to fraction form
85,546,943.80/128,225,937.30 = 47,235,952.60/x - Step 3: Cross multiply
85,546,943.80x = 128,225,937.30 × 47,235,952.60 - Step 4: Simplify right side
85,546,943.80x = 6,056,874,296,393,372 - Step 5: Solve for x
x = 6,056,874,296,393,372/85,546,943.80 - Step 6: Final answer
x = 70,801,761.32
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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.