Finding the Fourth Proportional to 14,990,746.88, 20,687,237.68 and 8,115,229.04
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Solution
The fourth proportional to 14,990,746.88, 20,687,237.68 and 8,115,229.04 is: 11,199,019.86
Step by Step Solution
- Step 1: Write the proportion equation
14,990,746.88 : 20,687,237.68 = 8,115,229.04 : x - Step 2: Convert to fraction form
14,990,746.88/20,687,237.68 = 8,115,229.04/x - Step 3: Cross multiply
14,990,746.88x = 20,687,237.68 × 8,115,229.04 - Step 4: Simplify right side
14,990,746.88x = 167,881,671,978,118.22 - Step 5: Solve for x
x = 167,881,671,978,118.22/14,990,746.88 - Step 6: Final answer
x = 11,199,019.86
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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.