Finding the Fourth Proportional to 13,564,540.76, 18,719,278.70 and 7,369,710.17
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Solution
The fourth proportional to 13,564,540.76, 18,719,278.70 and 7,369,710.17 is: 10,170,315.45
Step by Step Solution
- Step 1: Write the proportion equation
13,564,540.76 : 18,719,278.70 = 7,369,710.17 : x - Step 2: Convert to fraction form
13,564,540.76/18,719,278.70 = 7,369,710.17/x - Step 3: Cross multiply
13,564,540.76x = 18,719,278.70 × 7,369,710.17 - Step 4: Simplify right side
13,564,540.76x = 137,955,658,480,009.44 - Step 5: Solve for x
x = 137,955,658,480,009.44/13,564,540.76 - Step 6: Final answer
x = 10,170,315.45
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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.