Finding the Fourth Proportional to 19,480,939.76, 26,883,728.36 and 10,779,479.12
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Solution
The fourth proportional to 19,480,939.76, 26,883,728.36 and 10,779,479.12 is: 14,875,698.60
Step by Step Solution
- Step 1: Write the proportion equation
19,480,939.76 : 26,883,728.36 = 10,779,479.12 : x - Step 2: Convert to fraction form
19,480,939.76/26,883,728.36 = 10,779,479.12/x - Step 3: Cross multiply
19,480,939.76x = 26,883,728.36 × 10,779,479.12 - Step 4: Simplify right side
19,480,939.76x = 289,792,588,336,055.81 - Step 5: Solve for x
x = 289,792,588,336,055.81/19,480,939.76 - Step 6: Final answer
x = 14,875,698.60
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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.