Finding the Fourth Proportional to 19,468,802.20, 26,863,962.65 and 11,207,268.15
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Solution
The fourth proportional to 19,468,802.20, 26,863,962.65 and 11,207,268.15 is: 15,464,312.08
Step by Step Solution
- Step 1: Write the proportion equation
19,468,802.20 : 26,863,962.65 = 11,207,268.15 : x - Step 2: Convert to fraction form
19,468,802.20/26,863,962.65 = 11,207,268.15/x - Step 3: Cross multiply
19,468,802.20x = 26,863,962.65 × 11,207,268.15 - Step 4: Simplify right side
19,468,802.20x = 301,071,632,990,134.56 - Step 5: Solve for x
x = 301,071,632,990,134.56/19,468,802.20 - Step 6: Final answer
x = 15,464,312.08
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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.