Finding the Fourth Proportional to 6,439,930.58, 8,887,317.27 and 3,539,424.26
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Solution
The fourth proportional to 6,439,930.58, 8,887,317.27 and 3,539,424.26 is: 4,884,522.58
Step by Step Solution
- Step 1: Write the proportion equation
6,439,930.58 : 8,887,317.27 = 3,539,424.26 : x - Step 2: Convert to fraction form
6,439,930.58/8,887,317.27 = 3,539,424.26/x - Step 3: Cross multiply
6,439,930.58x = 8,887,317.27 × 3,539,424.26 - Step 4: Simplify right side
6,439,930.58x = 31,455,986,360,700.42 - Step 5: Solve for x
x = 31,455,986,360,700.42/6,439,930.58 - Step 6: Final answer
x = 4,884,522.58
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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.