Finding the Fourth Proportional to 260,775,998.70, 391,163,998.05 and 260,775,998.70
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Solution
The fourth proportional to 260,775,998.70, 391,163,998.05 and 260,775,998.70 is: 391,163,998.05
Step by Step Solution
- Step 1: Write the proportion equation
260,775,998.70 : 391,163,998.05 = 260,775,998.70 : x - Step 2: Convert to fraction form
260,775,998.70/391,163,998.05 = 260,775,998.70/x - Step 3: Cross multiply
260,775,998.70x = 391,163,998.05 × 260,775,998.70 - Step 4: Simplify right side
260,775,998.70x = 102,006,182,246,973,600 - Step 5: Solve for x
x = 102,006,182,246,973,600/260,775,998.70 - Step 6: Final answer
x = 391,163,998.05
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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.