Finding the Fourth Proportional to 891,653,471.80, 1,337,480,207.70 and 834,257,843.80
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Solution
The fourth proportional to 891,653,471.80, 1,337,480,207.70 and 834,257,843.80 is: 1,251,386,765.70
Step by Step Solution
- Step 1: Write the proportion equation
891,653,471.80 : 1,337,480,207.70 = 834,257,843.80 : x - Step 2: Convert to fraction form
891,653,471.80/1,337,480,207.70 = 834,257,843.80/x - Step 3: Cross multiply
891,653,471.80x = 1,337,480,207.70 × 834,257,843.80 - Step 4: Simplify right side
891,653,471.80x = 1,115,803,354,200,978,176 - Step 5: Solve for x
x = 1,115,803,354,200,978,176/891,653,471.80 - Step 6: Final answer
x = 1,251,386,765.70
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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.