Finding the Fourth Proportional to 15,118,239.08, 20,862,569.04 and 8,925,280.80
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Solution
The fourth proportional to 15,118,239.08, 20,862,569.04 and 8,925,280.80 is: 12,316,532.76
Step by Step Solution
- Step 1: Write the proportion equation
15,118,239.08 : 20,862,569.04 = 8,925,280.80 : x - Step 2: Convert to fraction form
15,118,239.08/20,862,569.04 = 8,925,280.80/x - Step 3: Cross multiply
15,118,239.08x = 20,862,569.04 × 8,925,280.80 - Step 4: Simplify right side
15,118,239.08x = 186,204,286,891,386.44 - Step 5: Solve for x
x = 186,204,286,891,386.44/15,118,239.08 - Step 6: Final answer
x = 12,316,532.76
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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.