Finding the Fourth Proportional to 14,303,965.80, 21,480,831.90 and 7,585,501.80
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Solution
The fourth proportional to 14,303,965.80, 21,480,831.90 and 7,585,501.80 is: 11,391,448.45
Step by Step Solution
- Step 1: Write the proportion equation
14,303,965.80 : 21,480,831.90 = 7,585,501.80 : x - Step 2: Convert to fraction form
14,303,965.80/21,480,831.90 = 7,585,501.80/x - Step 3: Cross multiply
14,303,965.80x = 21,480,831.90 × 7,585,501.80 - Step 4: Simplify right side
14,303,965.80x = 162,942,889,042,947.41 - Step 5: Solve for x
x = 162,942,889,042,947.41/14,303,965.80 - Step 6: Final answer
x = 11,391,448.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.