Finding the Fourth Proportional to 19,937,459.08, 27,518,812.35 and 12,985,459.93
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Solution
The fourth proportional to 19,937,459.08, 27,518,812.35 and 12,985,459.93 is: 17,923,268.64
Step by Step Solution
- Step 1: Write the proportion equation
19,937,459.08 : 27,518,812.35 = 12,985,459.93 : x - Step 2: Convert to fraction form
19,937,459.08/27,518,812.35 = 12,985,459.93/x - Step 3: Cross multiply
19,937,459.08x = 27,518,812.35 × 12,985,459.93 - Step 4: Simplify right side
19,937,459.08x = 357,344,435,092,114.12 - Step 5: Solve for x
x = 357,344,435,092,114.12/19,937,459.08 - Step 6: Final answer
x = 17,923,268.64
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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.