Finding the Fourth Proportional to 13,101,657.65, 18,080,045.35 and 7,141,115.81
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Solution
The fourth proportional to 13,101,657.65, 18,080,045.35 and 7,141,115.81 is: 9,854,607.80
Step by Step Solution
- Step 1: Write the proportion equation
13,101,657.65 : 18,080,045.35 = 7,141,115.81 : x - Step 2: Convert to fraction form
13,101,657.65/18,080,045.35 = 7,141,115.81/x - Step 3: Cross multiply
13,101,657.65x = 18,080,045.35 × 7,141,115.81 - Step 4: Simplify right side
13,101,657.65x = 129,111,697,694,401.98 - Step 5: Solve for x
x = 129,111,697,694,401.98/13,101,657.65 - Step 6: Final answer
x = 9,854,607.80
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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.