Finding the Fourth Proportional to 207,186,560.20, 310,779,840.30 and 70,859,801.80
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Solution
The fourth proportional to 207,186,560.20, 310,779,840.30 and 70,859,801.80 is: 106,289,702.70
Step by Step Solution
- Step 1: Write the proportion equation
207,186,560.20 : 310,779,840.30 = 70,859,801.80 : x - Step 2: Convert to fraction form
207,186,560.20/310,779,840.30 = 70,859,801.80/x - Step 3: Cross multiply
207,186,560.20x = 310,779,840.30 × 70,859,801.80 - Step 4: Simplify right side
207,186,560.20x = 22,021,797,887,093,652 - Step 5: Solve for x
x = 22,021,797,887,093,652/207,186,560.20 - Step 6: Final answer
x = 106,289,702.70
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1.5x scale
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.