Finding the Fourth Proportional to 19,937,462.02, 27,518,816.40 and 12,985,462.87
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Solution
The fourth proportional to 19,937,462.02, 27,518,816.40 and 12,985,462.87 is: 17,923,272.69
Step by Step Solution
- Step 1: Write the proportion equation
19,937,462.02 : 27,518,816.40 = 12,985,462.87 : x - Step 2: Convert to fraction form
19,937,462.02/27,518,816.40 = 12,985,462.87/x - Step 3: Cross multiply
19,937,462.02x = 27,518,816.40 × 12,985,462.87 - Step 4: Simplify right side
19,937,462.02x = 357,344,568,588,547 - Step 5: Solve for x
x = 357,344,568,588,547/19,937,462.02 - Step 6: Final answer
x = 17,923,272.69
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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.