Finding the Fourth Proportional to 10,671,890.74, 15,998,865.76 and 8,645,108.47
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Solution
The fourth proportional to 10,671,890.74, 15,998,865.76 and 8,645,108.47 is: 12,960,395.98
Step by Step Solution
- Step 1: Write the proportion equation
10,671,890.74 : 15,998,865.76 = 8,645,108.47 : x - Step 2: Convert to fraction form
10,671,890.74/15,998,865.76 = 8,645,108.47/x - Step 3: Cross multiply
10,671,890.74x = 15,998,865.76 × 8,645,108.47 - Step 4: Simplify right side
10,671,890.74x = 138,311,929,862,978.20 - Step 5: Solve for x
x = 138,311,929,862,978.20/10,671,890.74 - Step 6: Final answer
x = 12,960,395.98
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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.