Finding the Fourth Proportional to 859,454,986.05, 1,289,182,479.08 and 859,454,986.05
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Solution
The fourth proportional to 859,454,986.05, 1,289,182,479.08 and 859,454,986.05 is: 1,289,182,479.08
Step by Step Solution
- Step 1: Write the proportion equation
859,454,986.05 : 1,289,182,479.08 = 859,454,986.05 : x - Step 2: Convert to fraction form
859,454,986.05/1,289,182,479.08 = 859,454,986.05/x - Step 3: Cross multiply
859,454,986.05x = 1,289,182,479.08 × 859,454,986.05 - Step 4: Simplify right side
859,454,986.05x = 1,107,994,309,569,308,544 - Step 5: Solve for x
x = 1,107,994,309,569,308,544/859,454,986.05 - Step 6: Final answer
x = 1,289,182,479.08
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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.