Finding the Fourth Proportional to 12,316,028.40, 18,424,276.20 and 10,651,618.80
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Solution
The fourth proportional to 12,316,028.40, 18,424,276.20 and 10,651,618.80 is: 15,934,387.32
Step by Step Solution
- Step 1: Write the proportion equation
12,316,028.40 : 18,424,276.20 = 10,651,618.80 : x - Step 2: Convert to fraction form
12,316,028.40/18,424,276.20 = 10,651,618.80/x - Step 3: Cross multiply
12,316,028.40x = 18,424,276.20 × 10,651,618.80 - Step 4: Simplify right side
12,316,028.40x = 196,248,366,748,312.56 - Step 5: Solve for x
x = 196,248,366,748,312.56/12,316,028.40 - Step 6: Final answer
x = 15,934,387.32
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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.