Finding the Fourth Proportional to 851,490,437.80, 1,277,235,656.70 and 851,490,437.80
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Solution
The fourth proportional to 851,490,437.80, 1,277,235,656.70 and 851,490,437.80 is: 1,277,235,656.70
Step by Step Solution
- Step 1: Write the proportion equation
851,490,437.80 : 1,277,235,656.70 = 851,490,437.80 : x - Step 2: Convert to fraction form
851,490,437.80/1,277,235,656.70 = 851,490,437.80/x - Step 3: Cross multiply
851,490,437.80x = 1,277,235,656.70 × 851,490,437.80 - Step 4: Simplify right side
851,490,437.80x = 1,087,553,948,497,253,504 - Step 5: Solve for x
x = 1,087,553,948,497,253,504/851,490,437.80 - Step 6: Final answer
x = 1,277,235,656.70
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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.