Finding the Fourth Proportional to 13,977,029.26, 19,288,260.86 and 7,865,457.70
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Solution
The fourth proportional to 13,977,029.26, 19,288,260.86 and 7,865,457.70 is: 10,854,309.39
Step by Step Solution
- Step 1: Write the proportion equation
13,977,029.26 : 19,288,260.86 = 7,865,457.70 : x - Step 2: Convert to fraction form
13,977,029.26/19,288,260.86 = 7,865,457.70/x - Step 3: Cross multiply
13,977,029.26x = 19,288,260.86 × 7,865,457.70 - Step 4: Simplify right side
13,977,029.26x = 151,710,999,900,895.62 - Step 5: Solve for x
x = 151,710,999,900,895.62/13,977,029.26 - Step 6: Final answer
x = 10,854,309.39
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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.