Finding the Fourth Proportional to 9,743,479.28, 13,445,588.16 and 5,392,158.80
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Solution
The fourth proportional to 9,743,479.28, 13,445,588.16 and 5,392,158.80 is: 7,440,950.45
Step by Step Solution
- Step 1: Write the proportion equation
9,743,479.28 : 13,445,588.16 = 5,392,158.80 : x - Step 2: Convert to fraction form
9,743,479.28/13,445,588.16 = 5,392,158.80/x - Step 3: Cross multiply
9,743,479.28x = 13,445,588.16 × 5,392,158.80 - Step 4: Simplify right side
9,743,479.28x = 72,500,746,518,119.81 - Step 5: Solve for x
x = 72,500,746,518,119.81/9,743,479.28 - Step 6: Final answer
x = 7,440,950.45
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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.