Finding the Fourth Proportional to 10,238,461.65, 14,128,984.05 and 5,592,245.70
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Solution
The fourth proportional to 10,238,461.65, 14,128,984.05 and 5,592,245.70 is: 7,717,248.25
Step by Step Solution
- Step 1: Write the proportion equation
10,238,461.65 : 14,128,984.05 = 5,592,245.70 : x - Step 2: Convert to fraction form
10,238,461.65/14,128,984.05 = 5,592,245.70/x - Step 3: Cross multiply
10,238,461.65x = 14,128,984.05 × 5,592,245.70 - Step 4: Simplify right side
10,238,461.65x = 79,012,750,298,981.09 - Step 5: Solve for x
x = 79,012,750,298,981.09/10,238,461.65 - Step 6: Final answer
x = 7,717,248.25
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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.