Finding the Fourth Proportional to 957,720,349.87, 1,321,653,498.23 and 517,687,201.87
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Solution
The fourth proportional to 957,720,349.87, 1,321,653,498.23 and 517,687,201.87 is: 714,408,022.58
Step by Step Solution
- Step 1: Write the proportion equation
957,720,349.87 : 1,321,653,498.23 = 517,687,201.87 : x - Step 2: Convert to fraction form
957,720,349.87/1,321,653,498.23 = 517,687,201.87/x - Step 3: Cross multiply
957,720,349.87x = 1,321,653,498.23 × 517,687,201.87 - Step 4: Simplify right side
957,720,349.87x = 684,203,101,334,493,056 - Step 5: Solve for x
x = 684,203,101,334,493,056/957,720,349.87 - Step 6: Final answer
x = 714,408,022.58
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.